Mountain Bike Drivetrain

Shimano XTR FC-M9020-B1 Boost 1xCrankArms

Shimano might have been fashionably late to the 1x party but they made sure that upon arrival, the components had all gone through extensive engineering and...

Shimano XTR FC-M9020-B1 Boost Crankset

Meticulously crafted for the most discerning of trail riders and enduro racers, the XTR FC-M9020-B1 Boost Crankset embraces Shimano's HollowTech II cold forged crank arms that...

SRAM PowerLock Chain Connector

The SRAM 10-speed PowerLock link is compatible with all models of SRAM 10-speed chains. It's not compatible with non-10-speed chains. "Why?" you might ask. It's simple:...

Shimano XT Di2 SW-M8050 Shift Switch

While it's not the star of Shimano's electronic shifting platform, the fact that the XT Di2 SW-M8050 Shift Switch isn't hamstrung by the constraints of pulling...

Shimano XTR Di2 SW-M9050 Shift Lever

While shift levers tend to get the most attention in mechanical drivetrains, Shimano's XTR Di2 SW-M9050 Shift Levers aren't the real headliners. That honor falls to...

Shimano XTR M9000 SM-CRM91 1x Chainring

Shimano might not be all-in on the 1x movement, but thankfully the Japanese giant does craft product for those of us who prefer the simplicity of...

SRAM XX1 Trigger Shifter

SRAM’s XX1 group undoubtedly changed the face of mountain biking, perhaps forever. The narrow-wide chainring, combined with an astonishing redesign of the rear derailleur’s parallelogram, meant...

SRAM Powerlock Link for 11-Speed Chain

The SRAM Powerlock Link is key for shortening your chain or trailside maintenance. This one works with SRAM’ 11-speed chains and is compatible with mountain or...

Shimano Saint RD-M820 Rear Derailleur

Designed for the extremes of downhill racing and freeride disciplines, the Saint RD-M820 Rear Derailleur remains crisp-shifting and noticeably free of drivetrain noise when you're plunging...

Shimano SLX M7000 1x Chainring

We know that SLX is still technically considered Shimano's workhorse mountain drivetrain, efficient and affordable. It's never been known as the sexiest or lightest groupset, but...

SRAM SRAM PG-1070 Cassette

The SRAM PG-1070 Cassette, unlike many competitors' cassettes at this level, is made completely from steel cogs. SRAM’s design wizards, however, have managed to keep the...

Race Face Next R Crank Arms

We love Race Face's rugged and DH-worthy SixC cranks on our big bikes for no-nonsense performance, as well as the ultra-lightweight and stiff Next SL crank...

Shimano Quick Link For 11-Speed Chain

Road cyclists and mountain bikers have relied on aftermarket solutions for quickly fixing their Shimano 11-speed chains for years, as Shimano never officially released a quick...

Niner CYA Insert

Bottom bracket standards have gotten a bit out of hand in the last few years, requiring frame designers to use one system over another. Instead of...

SRAM GX 1x11 Rear Derailleur

The SRAM GX group brings 11-speed drivetrains to the huddled masses with much of the technology from its higher end offerings. The GX1 1x11 Rear Derailleur...

e*thirteen components TRS Plus 12-Speed Cassette

Getting the most out of your drivetrain may mean simplifying some things — like switching to a one-by crank setup, but that shouldn't come with a...

OneUp Components Switch Chainring

One of the most efficient and affordable ways to handle the increasing number of chainring and crank standards, the OneUp Components Switch Chainring keeps your chain...

SRAM PG-950 Cassette

OneUp Components Switch v2 Chainring

One of the most efficient and affordable ways to handle the increasing number of chainring and crank standards, the OneUp Components Switch Chainring keeps your chain...

SRAM PG-1030 Cassette

Get off-road with SRAM's innovative approach to their 10-speed cassette, the PG-1030, which features PowerGlide II technology for butter-smooth shifting between gears. The PG-1030 is a...

OneUp Components Switch Carrier

The OneUp Components Switch Carrier was developed to diminish the cost of replacement chainrings, enhance compatibility with new offsets, and to speed up and simplify the...

Shimano XTR FD-M9000-D Front Derailleur

The Shimano XTR FD-M9000-D Front Derailleur is a side swing-type front derailleur designed for use specifically with 3-chainring configurations of Shimano's new M9000 XTR drivetrains, and...

OneUp Components Switch v2 Oval Chainring

OneUp Components Switch Oval Traction Chainring

With maximum efficiency and bank-saving affordability, the OneUp Components Switch Oval Traction Chainring keeps your chain in place through rowdy rides and only costs a fraction...

OneUp Components Oneup Chainguide Top Kit - V2

Civilian Bicycle Co. Sliding Dropouts

The Sliding Dropouts found on a Civilian Bicycle Co. steed have the derailleur hanger integrated. And if you're riding a Civilian how its builder intended, you're...

SRAM XG-1299 XX1 Eagle 12-Speed Cassette

Welcome SRAM’s new XG-1299 XX1 Eagle 12-Speed Cassette, the culprit that has officially thrown the mountain bike front derailleur into the dustbin of history. SRAM’s new...

SRAM X01 Eagle AXS DUB Groupset - Boost

Chances are, if you follow cross-country mountain bike race scene, you’ve already seen a few of SRAM’s riders sporting the new AXS Groupset. We first spotted...