Links

Read our blog for reviews, how-to guides, and more information about components in the shop

Book a holiday in the "Cycling Province" of the Netherlands:

We are also active campaigners for better conditions for cyclists everywhere. Read our campaigning blog, A View From the Cycle-Path.

Perhaps most importantly, we urge you to support The Campaign for Childhood Freedom.

 
Shopping Cart
0 items
 
Brands
 

Cotter pins

Cotter pins
Click to enlarge
Price: €1.40
Availability: 2 - 3 Days
Model: Cotter pin
Average Rating: Not Rated

Available Options:
Size:

Many traditional bikes have cottered cranks. On these bikes, cotters, or cotter pins, are used to attach the cranks to the bottom bracket. If your pedals flop once per rotation this is probably due to wear in the cotters. It's easy and cheap to fix.

It can be difficult to remove and replace cotters. To remove, a hammer is usually the easiest option. Support the crank (this is important) so that you don't end up hammering against the bearings, remove, or partially remove, the nut from the cotter and hit the threaded end with a hammer. When the cotter is out you can fit a new one from the opposite side. Note that this also needs to be fitted firmly. Presses are available to do this, but a hammer works well. Don't try to use the thread to pull the cotter through as it simply doesn't work. Cotters naturally try to work loose, so ride for a few km before tightening again.

Cotter pins come in various sizes, the most common  is the 3/8th inch 9.5 mm diameter. Please choose the size you need for your bike.

Priced individually. You probably want two - one for each side.

Write Review
Your Name:


Your Review: Note: HTML is not translated! Maximum 2000 characters.

Rating: Bad            Good

Enter the code in the box below:

There are no additional images for this product.