cotter pin - pick your size
cotter pin
 
  $2.89


Free Shipping

cotter pin size



qty:  
 
 
cotter pins for securing your pedal arms. sold individually. different mopeds use different size cotter pins so check before you buy.

to get these in properly, consider getting a cotter pin press tool!!! it makes a huuuge difference especially if you have lots of bikes or are wrenching a bunch. it will get in and out some of the toughest cotter pins without damaging them and keep em in tight!!!

attn!! news flash!! please keep in mind that the pedal shaft cutaway WILL affect the size of cotter pin that works perfectly with your pedal arms = infinite sizing possibilities.

puch and SOME tomos use 9.5mm pins.

we carry sizes - 8mm, 8.5mm, 8.8mm, 9mm, 9.3mm and 9.5mm - check the drop down menu for available sizes

the 9mm size now features awesome m7 threading for crankin down harder n removal with the aggressive hammer lifestyle we live

Honda camino hobbit Pa50 use 9.5mm cotter pins if you are using the stock pedals/pedal shaft.

sold BY THE PIECE in case that isn't clear from the photo of one cotter pin and the second sentence above. hmm.

NOTE!!! if the size/color/make that you want is not showing up in the drop down menu above, that means it's out of stock for now. you'll have to find an alternate size/color/make or wait til the one ya want is back in stock! sry!

9.3mm is tomos oem # 229227
9.5mm is tomos oem # 206714
tomos oem #217348 is also a cotter for A3 models, but we don't know the size yet!

taco rating taco rating 4 of 5 4 of 5 Total Reviews: 23 give your taco rating here

  0 taco eaters like this review
 
5 of 5 Crankin January 5, 2026
taco eater : Chris santucci from Fuquay-Varina, NC United States  
I got the 9.5mm for the pedal arm extender for my maxi. Worked as it should.

Was this review helpful to you?

  0 taco eaters like this review
 
5 of 5 Good quality pin March 7, 2022
taco eater : Michael Snyder from Quincy , IL United States  
Don't forget to grab an extractor with this if you need it. Way better than hammering these suckers out.. Thats why I needed one in the first place!!

Was this review helpful to you?

  0 taco eaters like this review
 
5 of 5 Welcome back November 28, 2021
taco eater : Moped Madman from Murrieta, CA Independent Kingdom of Treatland  
Cotter, good enough and did the job

Was this review helpful to you?

  0 taco eaters like this review
 
4 of 5 Works as advertised July 7, 2020
taco eater : Chinatown Kicks from Boston MA  
I sent away to France for a set of these before I thought to check Treats, can you believe it?  It turns out the ones from California fit just as well. 9.5mm for a Maxi, just like it says.

Was this review helpful to you?

  1 taco eaters like this review
 
5 of 5 Pedals pedal now. February 5, 2020
taco eater : Scott Dawson from Van Nuys, CA United States  
Used 8.8mm on Vespa grande, pedals no longer flopping around uselessly. Don't over tighten nut, you'll break it!

Was this review helpful to you?

View All Customer Reviews