Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the September Giveaway for a Spider Rear Rack and a Heavy Duty Drybag from aeroe


What part do i need to repair this?
#1
[Image: ImageOut5.jpg]

i was riding down the road, and all the sudden i was pedaling funny. next thing i know, my left crank falls off the bike. the crank will go back on, but won't stay in place. i was hoping someone here could tell me what i would need to ensure the crank stays put? i searched the side of the road for a washer, or something like that, but couldn't find anything. it could have slipped off a mile or two back.

thanks ahead of time for any help. it's starting to get warmer up here and id really like to have my bike up and running again.
  Reply
#2
Look in the hole it should have threads. What you need is a bolt with a large flat head or a bolt with a large washer. Measure the depth and get one a bit shorter but long enough to engage all the threads.

Go to a bike dealer or take it to a hardware store and get a bolt that fits. and a large washer to hold arm in place.

Unusual to me crank.
Never Give Up!!!
  Reply
#3
and oil your chain on a regular basisSmile
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply
#4
right, i'm embarrassed by the chain. i left it outside all winter, which is also dumb and negligent. i'll be getting a new one of those too i'm sure.

thanks george. i live in the upper peninsula of michigan and there aren't any bike shops around, but i'll try the hardware store down the road. if that doesn't work i'll have to make a bit of a road trip.
  Reply
#5
I hate to argue with my old buddy George but, you're not going to find that at any hardware store. You have lost your "Crankarm Fixing Bolt"; a fairly specific bolt.
You have a Truvative crankset, made by SRAM (also RockShox and Avid stuff) and it looks to be a BB30 with ISIS splines. If you can find a model # on the crankset, go here -

http://cdn.sram.com/cdn/farfuture/pucm0oR7cfZUJ_jrKLWr20Zu_NvZOvZVhUF3D3HdD4M/mtime:1310410943/sites/default/files/techdocs/2012_truvativ_spc_rev_a.pdf

You will want the part number in order to call bike shops in advance of wasting time and gas. It is a fairly common part, though, and any decent sized shop probably has a few in stock. My bet is on it being QBP part # CR2195 but I can't say without seeing.

A reminder to Everyone - check these bolts every time you check tire pressure! It's just routine maintenance, not a design flaw.
Wheelies don't pop themselves. (from a QBP fortune cookie)
  Reply
#6
Ye Robar , it does not surprise me. I was in a bike store looking at two boxes of axle nuts and could not find any to fit my bike.

Could not see a photo of the part in question.

Hey I did suggest a LBS first.
BTW , good eye PK.
Never Give Up!!!
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
4,392
08-15-2017, 08:55 AM
Last Post: idrivebig
 
7,169
08-15-2017, 04:24 AM
Last Post: Squarewheel
 
46,779
01-09-2016, 12:50 AM
Last Post: Bill
 
3,336
07-05-2015, 02:06 PM
Last Post: GeorgeET
 
3,484
11-03-2014, 07:18 PM
Last Post: nfmisso
 
9,232
04-10-2014, 06:41 PM
Last Post: dancer
 
11,327
04-12-2012, 08:10 PM
Last Post: ikevinz

Forum Jump:

[-]
10 Latest Posts
Where are you from and What is your favo...
Today 12:12 AM
Proper way to torque a crank bolt on a s...
Yesterday 11:36 PM
90's Raleigh R600
Yesterday 10:57 PM
Do Any Electric Bike Allows You to Switc...
Yesterday 07:23 PM
Know about the Hercules?
09-17-2020 11:04 PM
Pedals: Clip vs. Clipless
09-17-2020 07:48 PM
Raleigh "Trail" bike
09-17-2020 05:41 PM
Wobbling freewheel
09-17-2020 09:46 AM
Campagnoli seat post ID
09-16-2020 05:41 PM
Tour de France 2020
09-16-2020 07:43 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
33 posts
no avatar 2. G_M
15 posts
no avatar 3. Papa Dom
9 posts
no avatar 4. Sagan97
9 posts
no avatar 5. Painkiller
9 posts