Surly

This is Surly’s 29 x 3-inch Presta valve tube. It fits their Knard tires and is made of butyl rubber.

The Surly Jethro Tule rocks. It's made from tough, polished stainless steel and sports dual-purpose functionality. One end is the 15mm offset box end wrench you need to take your wheels off. While the other end provides stellar leverage and a bottle opener! That's two of the tools you need, in your pocket, all the time.

Surly's Moonlander Fork has clearance for a 26 x 4.7-inch wide tire. It accepts specialty front hubs with a rear disc offset or 135mm rear hubs. It takes a front disc-brake adapter so you can run any brakes that come in a traditional front/rear set without having to break up a set. This fork features large-diameter, thin-wall chromoly blades that taper for a smooth and supple ride. And, it's got standard and low-rider rack mounts and comes in a tough powdercoat finish because it's awesome.

Surly Mr. Whirly Spindles. - 100% CroMoly steel - Proprietary dimensions and spline for use only with Surly Mr. Whirly cranks

Surly OD Bottom Brackets - PF cups are 41mm in diameter - Bearing I.D. is 24mm - OD bottom bracket comes with telescoping center sleeve for added durability - High quality double labyrinth sealed stainless Enduro bearings with corrosion resistant coating - 3 additional 1mm spacers are provided to help with chain line and crank arm clearance

Surly Surly Big Dummy Frame Protective Plug Insert. - Notice the tapered end of each plug, if the end of a tube is dented, tap the protective plug into the tube with a soft hammer to round the tube out - Designed to prevent damage to the front bridge tube while frame is being shipped - Doubles as a tool to help round out any damaged bridge tubes or upright tubes during use of the bike - The diameter of the plug is designed to round it out to the correct diameter so that it receives accessories properly

The Straggler fork is very much like the Cross-Check fork — it's a lugged and brazed CroMoly fork with room for 700c tires up to 50mm wide. Both feature fender and rack mount eyelets at the dropouts, mid-blade threaded rack mounts and threaded eyelets on the sides of the crown for accessories. Both deliver a resilient ride and are finished in black powdercoat. The Straggler fork is equipped with a 51mm I.S. disc caliper mount and no accommodation for rim brakes. - Axle-to-crown: 400mm - Offset: 44mm - Steerer: 300mm, 1-1/8" straight (42-58cm), 350mm, 1-1/8" straight (60-62cm) - Tire Clearance: 50mm (w/o fender) Weight: 2.5 lb (1.15kg) uncut

- Surly Chain Tensioner part

It’s a little cloth patch that you can patch stuff with, or sew on a hat, if you are so inclined. For bed or for the ride, it’s the perfect accessory for the fashion conscious. - Customize Surly gear and clothing with Surly patches - Several different sizes and styles available - Dimensions: 3x3.5

The Terminal Bar blends cruiser-style comfort with off-road touring performance. Able to run with a 40mm drop or rise, its swept-back design makes it great for long rides on rough, technical terrain. - 22.2mm diameter grip area; good to go for MTB shifters, brake levers, and grips - 34 degree backsweep with a 40mm + / - rise

Our Men’s Long Sleeve Jerseys are made from medium-weight Merino wool. Merino fibers are soft and non-irritating even on sensitive skin. The fabric weight makes them suitable for cool weather to cold weather. They have a high collar to help keep the cold out and the warm in, and feature a long body and long sleeves. The sleeves have reinforced thumb holes to help make sure they stay all the way down as you ride. They feature a full-length zipper and a reinforced rear pocket with zippered access on both sides. - Merino Wool offers great moisture control and a resistance to odors - Medium-weight Merino wool fibers are soft and non-irritating even on sensitive skin - Full front zip for venting and a high collar to keep out the cold - Sleeves have reinforced thumb holes to help make sure they stay all the way down as you ride - Reinforced rear pocket with zippered access on both sides

Sometimes you need a little more than a cycling jersey and other times you need a little less. Enter our wool Raglan Shirts. We took the same reasons and philosophy behind our wool jerseys and applied them to our new wool shirts. Lightweight and comfy, our Merino wool raglan shirt is perfect for layering to help wick moisture or add a pinch of warmth. When it’s hot out, wear one solo to keep yourself high and dry.

When you’re out on a ride the last thing you want is to be limited by your tires in any way. Our ExtraTerrestrial Tires were designed to let you ride without limits by simply following the only tenets we have for tire design: they’re high volume and they kick ass. The ExtraTerrestrial tire was meant to serve as a heavy-duty off-road touring tire that shines on hardpack surfaces. It uses a nylon breaker in the sidewalls for cut protection, a molded pattern for anti-cut propagation, and a Kevlar cap under the tread to protect against flats. The ET Tire uses a distinctly directional tread pattern and its width yields more traction than you might expect from a tire with such little rolling resistance. The tread is low profile with a file tread in between tread blocks. The ExtraTerrestrial tire has enough width and traction for the soft stuff and won’t bog you down on smooth or hard surfaces. - Folding bead - Casing: 60 TPI - Recommended rim width: 23 – 30mm

Surly Trailer Parts

Some of you people just can't get enough hauling done with your Big Dummy or your Surly trailer. Well, nutball cargo haulers, here is your solution: The Big Dumb Trailer Hitch. This handy piece replaces the wheel yoke of your Surly Bill or Ted trailer and inserts into the horizontal tubes on the non-drive side of your Surly Big Dummy cargo bike, thereby making it possible to haul your trailer using your cargo bike. Wow. I'm not really sure what to say here. Good for you, I guess? I hope your hemorrhoid surgery goes really well. Note: Big Dummy Hitch is not compatible with the Big Fat Dummy

Special tools for building Surly Fat Bike wheels. - 56mm-wide spacer aids in dishing and truing Moonlander offset wheels - 35mm-wide spacer aids in dishing and truing Pugsley offset wheels

Surly Front Rack Hardware

Like some of Surly's other chain tensioning devices, Snuggnut keeps your rear wheel from slipping forward in the dropout under the pedal load of your powerful gams. It's specifically designed for bikes that feature 12mm horizontal, vertical-slotted dropouts and is particularly suited for singlespeed application. Snuggnut is CNC-machined for durability and good looks, and shares many design features found on Tuggnut and Hurdy Gurdy. Note: The Snuggnut is compatible with horizontal thru-axle dropouts only. If using 10/12 Adapter Washers and QR wheels use a Tuggnut instead. Snuggnut is not for use with MDS Chips. Compatible models listed below: - Wednesday - ECR 29+ - ECR 27.5+ - Ogre - Krampus - Karate Monkey SS - Karate Monkey 27.5

Our family of Dirt Wizards is highly-focused – one might even say spellbound – on providing traction and control on the kinds of surfaces where nary traction nor control are to be found. Its tread is comprised of a dual row of aggressive, trail-gobbling, beveled knobs in the center and well-spaced, siped knobs to dig into loose corners. Designed to work on 50mm rims, Dirt Wizards are tall and wide, providing next-level traction and cushioning. The casings have been designed to be flexible and responsive, yet durable and supportive. Minimum rim size for these naughty little wizards is a 35mm outer rim width. - Folding bead - Casing: 60 TPI - Max pressure: 30psi

Surly's burly line of tubular chromoly steel racks have been used on expeditions all over this planet for years.This Surly Rear Disc Rack is made of tubular chromoly steel and is specifically designed to fit frames with seatstay-mounted disc brakes like the Straggler (650B and 700c), Krampus, and Karate Monkey. - Tubular chromoly rack, stainless-steel hardware - Height-adjustable to accommodate 26-29" wheels - Hardware housed in reusable Surly Tool Bag

The Loop Junk Strap is the same 120cm woven nylon strap with a stainless steel buckle that Surly's regular junk strap is. The Loop Style Junk Strap, however, has a loop sewn at each end of the strap so you can wrap them around small diameter tubing like that used for racks and handlebars. They secure in the middle with the stainless steel buckle. Surly made these Loop Style Junk Straps because it offers another method for those wanting to secure cargo to their racks and or bikes. Junk Straps of any kind are useful in many different situations so toss a few in your backpack and always be ready to tie something to anything else. - For general tie down use - 42" loop strap, plus 8" closure buckle strap

We designed the Surly TV Tray to help riders boost the capacity of their current rack setups. Designed for easy pairing with nearly all Surly racks and most other racks on the market, mount this sturdy aluminum platform on top of your current rack to provide a footprint large enough for 30 lbs. of beef jerky, 9-volt batteries, used pinball parts, or whatever else you might need to haul. Available in dark black. - Load weight limit 30 lbs. - 15-3/8 x 10-inches - Rack weight 650g - 6061-TB Aluminum - Not compatible with Surly 24-Pack Rack or Wide Rear Disc Rack - Mounting Hardware Included

As a highly versatile touring bike, the Bridge Club hits the sweet spot that separates on- and off-road excursions. The simplistic design makes it fully adept to handle a full rack and pannier setup, frame bags, or any combination of the two. It doesn’t feel sluggish on paved shortcuts, but can also hold its own on dirt detours. If you’re feeling a little zesty on your next road tour, you won’t be ill-prepared for reroutes through the woods. The Bridge Club is designed to handle it all. - 100% Surly Chromoly frame, main triangle is double-butted; 1-1/8" threadless Chromoly fork - Rack, fender, and four sets of three-pack mounts - Disc brake-specific, single-position vertical rear dropout makes it less intimidating than other bikes in the category - Clearance for 700 x 47mm (with or without fenders) or 27.5 x 2.8" tires (27.5 x 2.6" with fenders)

Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. Your BMX Bike All Grown Up Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It's just as happy riding singletrack as it is parked outside your favorite drinking establishment. Lowside is a single speed mountain bike. Singlespeeding has been a part of Surly's DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off. "Some have dubbed the Lowside the ultimate pub cruiser." - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Spec'd in alternating years with 26 x 3" or 27.5 x 2.8" tires, the Lowside remains capable of running either option

All the hardware for the lower portion of your Surly rear rack. Stainless steel.

Surly OD Cups

The Cheater Bar is built from triple butted 4130 CroMoly steel and is tough enough to handle all of the abuse you will inflict upon it on the trail. Surly made two versions: a clear coated raw steel version and a black ED coated version. Both are CroMoly steel. - Material: Cromoly steel - Clamp diameter: 31.8mm - Width: 780mm - Rise: 0mm - Sweep Angle: 11 degrees - Color: Clear Coat Silver and E.D. coated Black - Weight: 400g

Designed for Surly's Krampus frame, this fork has quick-release dropouts spaced at 100mm and clearance for a 3-inch tire on a 50mm rim. To accommodate such big tires it's got a longer axle-to-crown measurement than the Ogre or Karate Monkey forks, making it a perfect rigid fork option for lots of 29ers out there. The Krampus fork's blades were designed and manufactured specifically to play well with the unique forces such a long fork with big tires will encounter, and the steer tube is standard 1-1/8-inch threadless. It has line guides for a disc brake line as well as thru-blade eyelets and Three-Pack bosses on both fork legs. - Axle-to-crown: 483mm - Offset: 47mm - Steerer: 260mm - Tire Clearance: 29 x 3" - Weight: 1133g uncut

The Karate Monkey frame features updated, progressive trail geometry, a new tubeset, and Surly’s Gnot-Boost rear dropout system to support multiple drivetrain and wheel size configurations. - 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube - Tubeset uses the same trumpet tubes found on Instigator 2.0 frame - Adjustable rear dropouts with 145mm Gnot-Boost spacing works with 142 x 12, 148 x 12mm, and 135mm w/ 10/12 washer - Internal dropper seatpost routing - 30.9mm seat tube ID - Clearance for 29 x 2.55 or 27.5 x 3 tires

Pop this replacement headbadge on your Surly and it's good as new.

- Replacement part for Surly hubs.

- Replacement thumb screw for the Surly Tuggnut/Snuggnut

Hi, I'm the Surly Lightweight Neck Toob. You might remember me from such films as “It's Cold! Don't Forget Your Neck Toob!" and “Look At This Thing, It Came From a Sheep!" Right now you might be thinking, “But Surly, I already have a Neck Gaiter from you guys. Do I really need a Neck Toob?" And the answer is maybe. Unlike the existing Neck Gaiter, which is made of a light inner layer and a midweight outer layer, I'm made of two lightweight layers. For those days when it's too chilly to leave your face and neck exposed but not cold enough for the full-blown Gaiter, I try to provide a nice, moisture-wicking alternative. I'm sized to fit most necks, and I can be worn a bunch of different ways. Thanks for tuning in, we'll see you next time. Your Friend, The Surly Neck Toob

A neck gaiter is a versatile piece of clothing. It can be worn in many different ways and assume many different uses. Wear it around your neck to keep the warm air in and the cold air out. Pull it up over your face when there is a biting wind. The options are limited only by your imagination, plus it’s wool so you know it’s going to do the trick keeping you warm. Our neck gaitor is, in fact, made of two layers of wool. The inner layer is light, the outer is midweight thus bolstering its warming, wicking and all-around-comfort-against-your-skin properties. One size fits most necks.

Skid Loader is a compact electric cargo bike wired for large loads, small footprints, and everyday deviant behavior. Just as Easy, Not as Big Cutting back on car trips is a worthy undertaking, especially in these times of planetary peril. With its electric-assist motor and extreme hauling capabilities, our compact electric cargo bike Skid Loader invites those inclined to throw a leg over and wave their middle digits at downtown gridlock. Built for finding more ways to drive less and ferrying various materials to work, play, or wherever, we gave Skid Loader the utility of a long-tail and a manageable footprint that fits wherever a normal bike does. Comfortable and compliant under load, Skid Loader also enjoys cutting loose without cargo. Engineered to ride and feel like a regular bike, its 27.5" wheel platform provides abundant tire options you don't get from cargo bikes rolling on smaller wheels. And because it's a Surly, we gave it ample tire clearance and built it for commutes that go from bus stop to bandit trail. We also gave all three frame sizes adequate standover and a dropper post to fit riders of assorted shapes and sizes. Furnished with useful accessory barnacles and internal routing for just about everything, Skid Loader's scaled-down and feature-packed cargo frame removes the roadblocks between you and riding whenever the hell you want. - Equipped with Bosch Performance Cargo Drive Unit, featuring four invigorating levels of ride assist - Capable of running dual batteries for extended range (all mounting hardware and wiring included) - Dedicated rear rack rated for 100 pounds of potatoes, thanks to beefed-up M6 hardware - Internal cable routing for dropper post, brake, shifter, and lights - Mounts for fenders, front rack, and bottle cages (two on Medium and Large, one on Small) - Stable dual-leg kickstand for your loading convenience - Compatible with Surly Excellent Adventure rear axle for use with Surly Bill and Ted Trailers; accommodations for human cargo - Sturdy, full-size wheels and large-volume 27.5 x 2.5" ExtraTerrestrial tires

Surly's Steamroller Fork pairs great handling with urban utility. It has steep track geometry for lightening fast response, making it as at home on the velodrome as it is flying downtown with cars and pedestrians. It features a flat crown, drilled to accept a standard-reach caliper brake, and the use of wide 38mm tires. And its stealthy Black powdercoat means your opponents in the Pursuit race will never see you coming!

Surly's Ultra New Disc Rear Hub is just the thing for singlespeed fanatics and one-gear mountain riders. This gorgeous hunk of aluminum boasts reliable sealed bearings and a 6-bolt disc attachment on one side and threads for a singlespeed freewheel (or fixed cog) on the other. A hollow axle lets you choose how to secure it to your dropouts. You have choice between the included fixing bolts or a quick release skewer (sold separately). And, that aforementioned chromoly axle is flex-free to take all the abuse you can dish out, and then some!

Track stars and fixed-gear converts will love Surly's Ultra New Front Hub. This gorgeous hunk of aluminum sports sealed bearings for all-weather reliability and low friction. And, the hollow axle is forged from flex-free chromoly for steering precision, long-lasting durability and simple quick-release compatibility.

Surly's Ultra New Rear Hub is ready for singlespeed mayhem. This gorgeous hunk of aluminum has the capability you need with reliable sealed bearings. It's available with threads for fixed cogs or freewheels, so you can set up the drivetrain of your dreams. Plus, this hub's 135mm width fits most MTB frames and the hollow chromoly axle provides a flex-free ride as well as simple quick-release skewer compatibility.

Keep yourself hydrated during your next interplanetary excursion with our Intergalactic Water Bottle. Available in 22 oz. and 26 oz. sizes, it'll store your liquids while resisting stains, odors, and mold.

Surly Wednesday Frame Stickers/Decals - For repair, repaint, or whatever - Dry transfer style - Headbadge included

Surly Wednesday Frame Stickers/Decals - For repair, repaint, or whatever - Dry transfer style - Headbadge included

Further personalize your unique Surly bike with one of four Surly Make It Your Own Decal Sets, featuring alternative fonts and designs for the discerning rider. Stickers may also be affixed to helmets, mini fridges, dog food bowls, and more. - Decals are available in black or white - Each set includes decals for the down tube, chainstays, and fork blades, a Surly Make It -your Own seat tube icon, Surly headbadge, and a ’Natch frame sticker - Dry-transfer style

The Karate Monkey features updated, progressive trail geometry, our custom trumpet tubeset, and Surly's Gnot-Boost rear dropout system. Available in a variety of colors, with multiple drivetrain and wheel size configurations.

Breaking the Mold with a 29er Bike As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It's shown people the light of how high volume, large diameter tires can vastly improve the ride experience. It's also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. "Lean back, hang on, and ride that wild horse." -Thor - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Clearance for 29" x 3" tires

Suitable as a tourniquet or stylish headband in a pinch, the Whip Lash's primary function is to help you attach whatever needs attaching to your bicycle frame. Available in a multi-pack that includes two 550mm lashes and one 695mm lash, the Whip Lash's potential is limited only by your imagination. You could use one to strap your beverage to the down tube when the trail says you ought to keep your hands on the bars. Or you could use another to fix your fishing gear to the top tube when rack space is maxed out. Whatever you get into on or off the bike, they're handy to have around because they're light, compact, and easy to use. Rubberized on one side to keep your stuff from slipping around, the Whip Lash's trimmable design features nylon construction and a simple hook-and-loop style closure.

Made from lightweight Merino wool, the Surly Raglan offers breathable comfort on warmer days and easy layering during harsh, inhospitable cold. - 100% Merino Wool is a natural insulator that resists odor and wicks moisture

The Knard is a tire that just makes sense. With its tightly-spaced, low-block tread pattern, it provides the perfect ratio of traction and low rolling resistance. It grips well on all sorts of different surfaces and will haul some sausage on hardpack terrain or groomed trails. If you want a tire that has a little less bite and a bit more speed but don't want to sacrifice traction, look no further.

Surly's Dummy Rail Collars are nothing more than a simple clamping device that buttresses the connection between your Big Dummy Frame and the Dummy Rails. They increase the stiffness of the interface of these two parts and help keep your cargo from getting its salad tossed… unless of course your Dummy Bags are filled with tossed salad. These are designed specifically for use with the Big Dummy frame and Dummy rails, and will not work with Xtracycle rails. WARNING: Properly installed Dummy Rail Collars are required for carrying live cargo on your Big Dummy.

Surly made these handy plates for use with either the Long Haul or Disc Trucker frames, and only the Long Haul and Disc Trucker frames. They are to be used with a bicycle kickstand to keep your bicycle upright while not moving as if by magic. The plates consist of two halves that, when clamped on your frame in conjunction with a kickstand, protect your chainstays from hamfisting by sandwiching the frame between the plates. Have you ever eaten a hamfist sandwich? They taste terrible, so avoid them like the plague. - Compatible with 2019 and older Long Haul and Disc Trucker frames

Whether for derailleur clamp clearance, tire clearance, or personal preference, sometimes it can be advantageous to run the wheel further back in the dropouts. Monkey Nuts install into Surly horizontal dropouts to make spacing the wheel back easy. There are 3 different sets depending on the type of dropout and axle configuration the dropout is intended for. Simply select the correct version of Monkey Nut, install it into the frame, and slam the wheel all the way forward. Bang, done.

Build your singlespeed or fixie bike around Surly's Ultra New Roadie Rear Hub. This gorgeous hunk of aluminum has the capability you need and reliable sealed bearings, too! It sports threads for a track cog and lockring on one side and a freewheel on the other so you can decide how you want to roll. Plus, this hub's 130mm width fits most road frames and the hollow chromoly axle provides a flex-free ride as well as simple quick release skewer compatibility.

Rated fully KICKASS by a very authoritative entity who will remain unnamed, Surly's cast and polished stainless steel clamps won't rust or chip paint because they can't (even the black ones!). They're shiny! They look good! And most importantly, they deliver the clampability seatposts crave.

This beaut here was designed alongside our Midnight Special Frame. In an effort to shed a few grams (it's for a road bike after all), we opted to utilize a unicrown design rather than a lugged one. In addition to the weight savings, it also looks really nice—don't you think? Now, we don't throw the phrase "future-proof" around lightly, so we won't use it here either. What we will say is that, like the Midnight Special Frame, this fork is equipped with modern road standards like flat mount disc brakes and a 100mm x 12mm thru-axle. For increased versatility, it has braze-ons for fenders and racks (including mid-blade!). - Axle-to-crown: 400mm - Steerer: 350mm, 1-1/8" straight - Tire Clearance: 27.5" x 2.32" or 700c x 42mm (27.5 x 1.95" or 700c x 38mm w/fenders) - Weight: 1254g

The Long Haul Trucker fork is designed to mount racks and fenders and to haul stuff. Offered in 26? and 700c wheel sizes, the fork’s new crown provides ample clearance for 700c x 50mm tires, and sports threaded eyelets in four locations (dual dropout, midblade and fork crown) to provide more options for mounting stuff, from racks to whatever. Options galore. Curved blades, CroMoly steel. 1-1/8-inch threadless steer tube. - Axle-to-crown: 700c = 390mm - Offset: 45mm - Steerer: 700c (56–64cm frames) = 350mm - Tire Clearance: 700c x 45mm - Weight: 700c = 2.3 lb uncut

Our family of Dirt Wizards is highly-focused – one might even say spellbound – on providing traction and control on the kinds of surfaces where nary traction nor control are to be found. Its tread is comprised of a dual row of aggressive, trail-gobbling, beveled knobs in the center and well-spaced, siped knobs to dig into loose corners. Designed to work on 50mm rims, Dirt Wizards are tall and wide, providing next-level traction and cushioning. The casings have been designed to be flexible and responsive, yet durable and supportive. Minimum rim size for these naughty little wizards is a 35mm outer rim width. - Folding bead

The Dinner Fork is non-suspension corrected and accommodates 26", 27.5", and 29" wheel sizes. If you want to run fenders alongside an 8 or 24-Pack style rack, this fork can do that. Hell, it relishes it. To give you even more options for carrying miscellaneous items, we put a set of 3-pack mounts on each fork blade, too. Run it on your current Surly for a thought-provoking new experience, or throw it on a different rig to unlock some off-road capabilities. A truly versatile piece of cutlery, the Dinner Fork features 100% Surly Chromoly steel construction, 51mm IS disc brake mounts, and clearance for tires up to 26 x 3.0", 27.5 x 2.8", or 29 x 2.2". Specifications: - Axle-to-crown: 420mm - Offset: 50mm - Steerer: 350mm, 1-1/8" straight - Tire Clearance: 26 x 3.0" (without fenders); 27.5 x 2.8" (with or without fenders); or 29 x 2.2" (without fenders) - Weight: 2.75 lb.

Surly's Junk Straps can secure almost anything to almost anything else. Essentially an extra long toe strap, they're easy to use and store. And, trust us, these handy straps will get used often.

Spruce-up a well-loved Dummy bag with replacement parts from Surly.

Spruce-up a well-loved Dummy bag with replacement parts from Surly.