Crank arms

Crank Arms

Crank arms the levers that connect your bike’s pedals. They are a section of a crankset that is comprised of arms that connect to the bike’s bottom bracket. The crankset is what keeps your bike working. Cranks are tailored with saw-like cogs known as chainrings that move the chain. As the chain moves, it drives the back wheels as you pedal.
Crank arms are the features that receive the pressure applied to the pedal and facilitate smooth cycling motion and enable sharper turns without the pedal dropping to the ground. Velomio can help you find great crank arms!

Types of Crank Arms

If you do not know the types of crank arms set available in the market, you can find crank arms bike comparisons at Velomio that can work for you.

Integrated Arm Crank

An integrated crank is a light and simple design that has features on the drive and non-drive sides. The drive side comprises the crank arm, chainring, spindle, and spider all collected in a single piece. The non-drive side consists of a spindle where the crank arm fits into and is fastened by a bolt holed into the spindle. Alternatively, the crank arm can lock around the spindle using two pinch bolts.

Cottered Crank Arms

Cottered crank arms consist of separate levers connected to the spindle using a cotter pin. The levers slip into the spindle and are held in place by fastening the cotter pin nut screw. Tightening the levers helps to prevent play and the contact area from wearing out.

One-Piece Cranks

One-piece cranks have the levers attached and cannot be detached separately. The cranks wind through the shell of the bottom bracket and are secured by threaded flanges that grip the bottom bracket more tightly.

Square Taper Cranks

Square taper cranks are made up of separate or independent crank arms secured into the spindle by use of bolts. The tapered opening on the levers creates a close-fitting and steadfast fit making it hard for the crank arms to come loose.

Choosing the Best Crank Arms

To find what works for you it is best to consult an expert fitter who is proficient with crank arms. The length of the crank arm matters because the right length will reduce stress on your hip and knee, smoothen the pedal stroke and help you maintain a good pace. If you are wondering where to find crank arms that are appropriate for your bike, check out the varieties available on Velomio.