Forum home Mountain biking forum MTB workshop & tech

Shram crank removal

bikerbartbikerbart Posts: 42
edited October 2010 in MTB workshop & tech
Shram Truvativ Firex GXP
As found on Boardmans

Does anyone know if a puller is required to remove crank?
I have removed locking outer bolt and inner holding bolt but the crank failed to come off. There doesn't seem to be anything else holding it. I have tried a firm tap but holding fast

Posts

  • MRaddMRadd Posts: 205
    Put it all back together... (it's self extracting you see...)

    Use a 8mm allen key on the inner holding bolt.. and the crank arm should fall off.
    : "Why don't i remember breaking my face?" :

    : Semi Professional Grease Monkey, Full time Tea boy... :
  • I've taken the inner bolt out (8mm allen key one) do you mean put that back in?
  • MRaddMRadd Posts: 205
    ALL back together as you found it.
    : "Why don't i remember breaking my face?" :

    : Semi Professional Grease Monkey, Full time Tea boy... :
  • Ah just realized what you mean, off to garage, cheers
  • MRaddMRadd Posts: 205
    :D
    : "Why don't i remember breaking my face?" :

    : Semi Professional Grease Monkey, Full time Tea boy... :
  • Ah, no I don't. Put it in, out, shook it all about, cranks not for dropping off
  • nicklousenicklouse Posts: 50,675 Lives Here
    did you re fit the extraction ring. the other allen fitting.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • I think I get it now, you leave the outer 10mm in place and pass thru that with 8mm and undo that and the outer pulls the crank with it, is that right?
  • MRaddMRadd Posts: 205
    Bingo!
    : "Why don't i remember breaking my face?" :

    : Semi Professional Grease Monkey, Full time Tea boy... :
  • Hey up, I'm not as daft as I'm cabbage looking!
    I'll have to do it tomorrow now, the wife says if I go out to garage once more she''ll pull my crank off, thanks for your help lads
  • :D easy when you know how!
  • MRaddMRadd Posts: 205
    Nicely done sir!
    : "Why don't i remember breaking my face?" :

    : Semi Professional Grease Monkey, Full time Tea boy... :
Sign In or Register to comment.