Know the rules The Paceline Forum Builder's Spotlight


Go Back   The Paceline Forum > General Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 04-21-2020, 01:36 PM
giverdada giverdada is offline
Senior Member
 
Join Date: Jul 2008
Location: toronto, canada
Posts: 908
Truvativ Sram Crank Bolt Question

Hey friends:

I'm isolating in the middle of nowhere (away from all bike shops ever, including the closed ones and open ones), and seem to have lost my crank bolt. It seems that it self-extracted itself. Hard to dig up info on the bike or the part or whatever, and there's a blizzard outside so my phone photos are ****e, but here's what I got:

Bike is 2015 Louis Garneau Elevation HR1, 29er MTB, all stock
(I think) Crank is Truvativ e400, triple
(I think) BB is Powerspline

Hard to find info. Hard to get a part number (I'm not savvy on the search). Hard to figure out. Looks like there are threads inside the spindle for the actual retention of the arm by the bold onto the spindle. Then there are threads inside the crank arm too. Weird. Anyway, if anyone has an encyclopedic knowledge of BBs and their bolts, I'd appreciate the help!

Thank you!
Attached Images
File Type: jpg IMG_7483.jpg (88.7 KB, 27 views)
File Type: jpg IMG_7484.jpg (71.8 KB, 27 views)
Reply With Quote
  #2  
Old 04-21-2020, 02:54 PM
Mark McM Mark McM is offline
Senior Member
 
Join Date: Jun 2006
Posts: 12,655
Powerspline uses the same retention bolt (M8) and crank remover (22mm) as square taper cranks.

Powerspline can be distinguished from other splined BBs by the number of splines:

Powerspline - 12 splines
ISIS - 10 splines
Octalink - 8 splines
Reply With Quote
  #3  
Old 04-21-2020, 02:54 PM
dave thompson's Avatar
dave thompson dave thompson is offline
You still here?
 
Join Date: Dec 2003
Location: Spokane, Washington
Posts: 10,846
Your pic is a little blurry but it appears that whst you need is a standard square taper crank bolt assembly. If the black ring that surrounds the central bolt has holes to locate a pin spanner, that's the self extractor. All pretty common.
Reply With Quote
  #4  
Old 04-21-2020, 07:29 PM
giverdada giverdada is offline
Senior Member
 
Join Date: Jul 2008
Location: toronto, canada
Posts: 908
awesome. thanks friends. i'll see about scamming a bolt off of another bike and trying my luck.
Reply With Quote
Reply

Tags
bolt, crank, crankarm, sram, truvativ


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:40 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.