With optimized crankarms made from 7000-series aluminum, SRAM's X7 Crankset is stiff, tough and ready to take on the mountain. Its X-Glide chainrings have multiple shift points designed for snappy, super-fast shifts up and down. And, the X7 comes with a GXP bottom bracket, too.

For maximum pedaling efficiency, Shimano's 105 Crankset boasts light, stiff hollow cold forged aluminum arms, plus an integrated oversize-steel axle. The chainrings are also made of cold-forged aluminum and are ramped and pinned for quick, precise shifting. The asymmetrical, four-armed big chainring provides incredible power transfer.

Shimano's Deore Crankset features the efficiency and fast shifting to let you make the most out of the trails. Two-piece construction, outboard bottom bracket bearings, and hollow-forged crankarms transfer your power quickly and smoothly to the rear wheel. Shimano's computer-designed chainrings have the benchmark front shifting the company is known for.

You'll always find the perfect gear with Shimano's Tiagra Crankset. It's crafted from aluminum for low weight and efficient power transfer, while the ramped and pinned chainrings boost shifting speed and precision.

Origin-8's Trekking Crankset is a fine 9-speed compatible mountain bike touring/trekking triple-chainring crankset made of light and durable forged aluminum. It's stiff and has 175mm arms for excellent power transfer, plus it has CNC-machined and ramped and pinned chainrings for smooth and precise shifting. The chainrings are 48-, 38- and 28-tooth.

Origin-8's Track/SS Crankset is made of light and durable forged aluminum. It has a fine machined-aluminum 46-tooth chainring for super-smooth pedaling and comes in a variety of colors to make your bike the coolest ride on the block. - Single speed crankset - Forged AL6061-T6 alloy crankarms - CNC alloy 1/8" 46 tooth chainring - 42mm chainline with 103mm JIS BB

Origin-8's Compact Road Crankset is made of light and durable forged aluminum with CNC-machined and black-anodized aluminum chainrings.

Shimano's 9-sped Alivio crankset is a solid replacement for your tired, worn out cranks. They give you the gears you need to quickly cruise through the city or take on the steepest trails. They are chainguard compatible, so if you're using these cranks on a commuter, your pant cuffs aren't in danger. Plus, the chainrings shift super-quick and precise.

• 6/7/8-speed MTB crankset • Square taper interface • Alloy arms • Replaceable steel chainrings • Does not include BB • Bolt Pattern: 104/64 x 4-bolt

- Triple replacement crankarms - Cold Forged alloy construction - Great for Recumbent or Junior road rider applications - Does not include BB - 130/74mm bolt-circle diameter - 145mm crank arms

SRAM's S600 3.0 Crankset features forged arms for increased strength and reliability paired with smooth shifting chainrings for the best combination of looks, performance and price.

Shimano Altus M311 cranksets provide durability and reliable shifting for triple chainring drivetrains. - Hyperdrive SG-X chainrings - 7/8-speed compatible - Spindle interface type: Square Taper JIS

• Singlespeed crankset • Alloy crankarms w/ solid steel chainring • Square taper interface • Does not include BB

• OctaLink interface • Only includes left crank • 175mm length

Replacement non-drive (left) side crankarm - Forged aluminum crankarm with CNC-machined finish - JIS square taper design

Revamp the look of your single speed cranks with some new hardware. Origin-8's Single Chainring Bolts give a high polished look to any crankset. The anodized finish comes in multiple colors to highlight your crank and makes it look as good as you do. You can also choose between steel or aluminum bolts. • Set of 5 male/female bolts • Inside measures 4mm when tightened, 7mm total height

Secure your chainrings for your ride with Origin-8's Double/Triple Chainring Bolts. Made for double and triple chainrings, each set includes 5 male/female bolts to securely connect your chain rings to the crank. Available in black and silver, as well as aluminum or steel.

• Square taper interface • Only includes left crank • 175mm length

Machined aluminum spacers for freehubs. Great for fine tuning freewheel and cassette placement or improving chainline. Also good for bottom bracket spacing with BSA BB cups. - Inner Diameter: 35.0mm - Outer Diameter: 40.7mm - Material: Aluminum - Finish: Polished - Bags of 10

Use these Wheels Manufacturing Crank Spindle Spacers to adjust chainline or bearing play in bottom brackets. - 24mm for Shimano Hollowtech II, FSA, Race Face EXI, SRAM GPX - 30mm for BB30, PF30, BB86, BB92 and other cranks with 30mm spindles - Machined engineering-grade Delrin - 10 spacers per bag

Secure your chainrings for your ride with Origin-8's Double/Triple Chainring Bolts. Made for inner triple chainrings, each set includes 5 male bolts to securly connect your chainrings to your crank.