Paul Components Melvin Chain Tensioner. Converts frames for single speed use. Long enough for a Dingle-setup, (2 rings, one cog) 20T max. - The Melvin uses two pulleys, just like a rear derailleur, which gives it 20 teeth of chain wrap - Will work with multiple front chain rings while maintaining proper chain tension - The pulleys are made of extruded and machined aluminum and have sealed bearings for durability - Pulleys are 2.25mm thick at the tooth which fits inside most narrow 6 through 9 speed chains, and the pulley cage is wide enough to allow 1/8? single speed chains as well - Long enough for a Dingle-setup, (2 rings, one cog) 20T max - Do not use with a coaster brake or fixed gear - Includes Paul's own Sealed Bearing Pulleys

Our Post-Lock is a bicycle rack attachment point that can be positioned anywhere on your seatpost to provide a mounting point. Post-Locks do not have a lip like our Lip-Lock, Flip-Lock, and Rack-Lock so therefore cannot be used as a seatpost clamp. - NOTE: This IS NOT a seat collar and CANNOT BE USED to keep your seatpost in place - NOTE: NOT FOR USE with carbon fiber seatposts - NOTE: Please consult your seatpost manufacturer to check compatibility - Max torque 3–5Nm - AL-6061 Aluminum - Strong rack attachment points - 34mm-wide rack mount threaded for M5 bolts - Available for 27.2, 30.9, and 31.6 mm diameter seatposts

If you've got rear-facing horizontal dropouts and you don't want your chain to slip when your rear wheel pulls forward, then Surly's got you covered. The Tuggnut is made from investment-cast stainless steel and it'll hold your wheel in place. Plus, it comes with an adapter for quick release axles and features an integrated bottle opener.

The 12mm slotted MDS dropout is the newest chip for Surly's MDS equipped trail frames. You like chips, don't you? The 12mm slotted dropout chip uses a standard derailleur mount for maximum compatibility and is made of cast and machined 6061-T6 aluminum, with a fender eyelet. What's the coolest part about the 12mm slotted MDS chip, you ask? The fact that it also has the capability to run a 12 x 142mm thru-axle in a single speed configuration. This is good news because single speeds are good news. When you get an MDS equipped frame you're getting the option to set it up however you want. You can run a 142 x 12mm thru-axle rear end with a direct mount Shimano hanger, standard 135mm QR or The Mighty Singlespeed. The way this will work is that Surly complete bikes that feature the MDS will ship with whatever chip is compatible with derailleur spec. For instance, the complete Instigator 2.0 ships with the 142 x 12mm thru-axle Shimano chip. If you want to change it to a singlespeed later (and why wouldn't you?), all you have to do is get the SS chip. Frames will ship with all three MDS chips so pick your poison. The 142 x 12mm and 135mm QR chips are made of cast and machined 6061-T6 aluminum and The Mighty Singlespeed chip is 304 stainless steel, because the two words 'aluminum' and 'singlespeed' should never be too close to each other. Bad things can happen…. As you can see, the MDS gives you not just different build options, it lets you use a more varied selection of parts for your frame up builds. The MDS is featured on most of our trail bikes. That's right: Krampus Ops, Karate Monkey Ops, Instigator 2.0 and Ice Cream Truck frames all sport these puppies.

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

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.

Replacement dropout screws for the Surly Cross Check. - Bolt length: 40mm

Surly Thru-Axles are low-profile, bolted Thru-Axles are specifically designed for use with Surly thru-axle compatible frames. Offered in several sizes, for both front and rear wheels. 12x142 Rear Thru Axle: - Fits: Midnight Special and MDS Dropout bikes including Instigator, Legacy Karate Monkey & Legacy Krampus. 12x142/148 Rear Thru Axle: - Designed for frames with Surly Gnot Boost spacing (145mm), capable of working with 142 or 148mm rear hubs - Fits: Karate Monkey, Krampus, Troll, Ogre, ECR 12x177 Rear Thru Axle: - Fits: Wednesday 12x197 Rear Thru Axle: - Fits: Ice Cream Truck, Big Fat Dummy 12x100 Front Thru Axle: - Fits: Midnight Special 15x110 Front Thru Axle: - Fits: Karate Monkey, Krampus 15x150 Front Thru Axle: - Fits: Wednesday, Ice Cream Truck, Big Fat Dummy

Wheels Manufacturing hangers are stiffer than almost any OEM hanger, which improves durability and shifting performance. - OEM hangers are only produced by a handful of manufacturers, mostly in Taiwan and China. As a result, you will see many bikes with exactly the same hanger. Bicycle manufacturers may make mid year changes. Please use the hanger photos to select the proper hanger for your application. - CNC machined 6061 aluminum - Black anodized finish - Made in the USA

The tool-free Maxle Ultimate Rear brings exceptional stiffness and durability to your ride in a high clamping force, easiest-to-use internal cam thru axle system.

What It Is Replacement hardware for ENVE carbon fiber seatposts. Who It's For Folks who need additional hardware for their ENVE seatposts. Why We Made It We get calls all the time for replacement hardware, so we made a little kit to make it easy for everyone.

This replacement bolt unit ensures your I-Spec II shifters, dropper levers, and/or brake levers are securely fastened. Make sure your controls are ready to rip.

The Pro Braze-On Chain Catcher from K-EDGE is used by most professional cyclists and pro teams around the world, in all types of racing including prestigious Olympic Games, World Championships, and Grand Tours, such as the Tour de France, Paris-Roubaix, and Giro d ’Italia. The Pro model is designed to improve on the original K-EDGE Chain Catcher design: - Easier Installation – Independent setup and installation of front derailleur and the K-EDGE Chain Catcher - Stronger – Separate and lower attachment /adjustment bolt equates to stronger hold ensuring the chain cannot drop below the chain catcher - Optimized Design – Unique curved ramp profile enables quicker chain engagement with the chain ring while eliminating dropped chains - Material: 6061-T6 CNC machined Aluminum - Fitment: All braze-on mounted front derailleurs* - Hardware: Includes all mounting hardware for Shimano, SRAM, and Campagnolo front derailleurs * Not compatible with Campy EPS * May not work with all third-party braze-on adapter clamp. Shimano - Made in Boise, Idaho, USA, - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded.

BB30 service kit includes 2 Enduro 6806 ABEC-3 sealed bearings and 2 retaining clips. - Bearing Dimensions: OD: 42mm / ID: 30mm / Width: 7mm - Direct replacement bearing for OEM BB30 and BB30A systems - Enduro ABEC-3 bearings

This is the correct plug-and-play wire for Shimano's E-Tube Di2 electric-shifting systems. It comes in sixteen different lengths, so choose the one(s) that's right for your Di2 E-Tube wiring configuration.

A five-piece IGUS bushing spacer kit for mounting rear shocks. - Compatible with x eyelet shocks using IGUS bushings mounted in the shock eyelet - Select the correct hardware kit for your mounting bolt diameter (e.g. 6mm, 8mm) and frame mount width (e.g. 22mm, 24mm)

Sport brake housing packs high performance features into a colorful and durable package, making it a functional and aesthetic upgrade. - Slick-Lube lined housing reduces friction for faster cable movement and better braking response - High carbon internal steel coil for improved stiffness - Appropriate for Teflon coated cables as well as steel and galvanized - Length: 10m

All-City replacement bolts and adjustment springs for the Hennepin Bridge and Space Horse dropouts. - Sold as a pair; two bolts and two springs - M4x0.7mm thread - Length: 45mm

Wheels Manufacturing hangers are stiffer than almost any OEM hanger, which improves durability and shifting performance. - OEM hangers are only produced by a handful of manufacturers, mostly in Taiwan and China. As a result, you will see many bikes with exactly the same hanger. Bicycle manufacturers may make mid year changes. Please use the hanger photos to select the proper hanger for your application. - These hangers DO NOT INCLUDE attachment hardware with the exception of QBP # FS1561 (DROPOUT 399) - CNC machined 6061 aluminum - Made in the USA

Wheels Manufacturing hangers are stiffer than almost any OEM hanger, which improves durability and shifting performance. - OEM hangers are only produced by a handful of manufacturers, mostly in Taiwan and China. As a result, you will see many bikes with exactly the same hanger. Bicycle manufacturers may make mid year changes. Please use the hanger photos to select the proper hanger for your application. - These hangers DO NOT INCLUDE attachment hardware with the exception of QBP # FS1561 (DROPOUT 399) - CNC machined 6061 aluminum - Made in the USA

The Problem Solvers GXP Spindle Adapter Kit lets you adapt a GXP crankset to a BB30 or Press-Fit 30 bottom bracket. It's used with the Problem Solvers BB30/Press-Fit 30 Adapter Kit, which is sold separately.

ReMatch adapters are designed to integrate different generations of Shimano Brakes to Shimano Shifters. Rematch Adapter 1.2 connects Shimano I-Spec A/B brake to I-Spec II Shifter. - Made from CNC Machined T6061 Aluminum - Anodized Black - Includes all necessary hardware for both I-Spec A and I-Spec B brake - No additional hardware needed

The Problem Solvers Shifter Boss Covers are perfect for covering up the down-tube shifter bosses when you're converting a frame with them to a singlespeed/fixie setup. They're made of light, durable aluminum and sport a nice polished finish.

ZIPP Service Course Bar End Plugs, Qty 2.

Zipp developed an extensive line of aluminum aerobar extensions to provide the perfect fit for any rider, regardless of size or riding position. Vuka extensions are designed to deliver improved aerodynamics by placing hands closer together and nearer to the rider’s head to start airflow over the rider sooner. Designed with input from top bike fitters, the shape of the Vuka Alumina Evo is crafted to feel as if the rider is shaking hands with the bar. This is achieved through the use of a multi-radius bend paired with a 20mm inward roll of the bar that can be adjusted to dial in fit and achieve an ideal position. - Clean internal cable routing for easy installation - Length: 360mm

Zipp Speed Weaponry Vuka / Stealth Riser Kit - Bolt kits sold separately

Zipp Speed Weaponry Bolt Kits

Designed for use with the Zipp SL Speed Seatpost; an internal mount to hold a Shimano DI2 seatpost battery. - Mount compatible only with B1 SL Speed seatpost - Weight: 18g for 27.2mm, 19g for 31.6mm

Zipp Speed Weaponry Cartridge Bearings

Problem Solvers Universal Derailleur Hangers The Universal Hanger replaces the drive-side nut on the quick-release skewer so you can get the majority of your gear range back. A vital tool to bring along when touring. - Emergency, on-the-trail derailleur hanger replacement - Enables you to keep riding and use the majority of your gear range - Compatible with most rear-facing-horizontal and vertical dropouts - Replaces the drive-side nut on 5mm quick-release skewers - Anti-rotation feature ensures the derailleur stays in place during use - CNC-machined AL-6061 with steel hardware