Jump to content

Shimano 105 Hollowtech crank 8 speed(older set)


Recommended Posts


Using a size 8 allen key I removed a tight crank screw. The left hand side arm is even tighter and I stripped the thread.

1) which direction does this allen key nut loosen?

2) how can I now remove a stripped allen key screw.

Thanks in advance

Link to comment
Share on other sites

Bolts holding BB tight are anticlockwise on left and right. The BB cups are normally anticlockwise left and clockwise right.


Is the BB removed from the bike? Where is the thread that is stripped?

Link to comment
Share on other sites

Hi Martin. Thanks- it a sold BB and not the cups and it's still in the bike. I have removed the RHS allen key bolt.

The thread on the LHS allen key bolt is stripped from probably turning the incorrect way. I may have to take it to an engineering place to remove.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Settings My Forum Content My Followed Content Forum Settings Ad Messages My Ads My Favourites My Saved Alerts My Pay Deals Help Logout