Old timer
Über Member
- Location
- Norfolk, UK
Can I grind a small amount from the inside of the left hand pedal arm (left hand when sitting on the bike. The one without the chain wheels)
Mine is an ali Shimano Exage, around the square drive hole is a raised section (obviously to give a more wider area on the square drive) I need to shave around 1/8" and basically remove the raised section. This will give me more clearance for the pedal assist rotory magnet that I need.
You are supposed to fit the assembly on the chain wheel side( where looking at mine the bottom bracket spindle has a touch more length before the sq part of the spindle starts and would give the clearance needed) but as pointed out in an earlier thread it would mean removal of my small chain ring and also some grinding of the lugs that hold it meaning no going back.
I presume that the tapered sq in the crank arm is a tight fit along it`s length and removing the 1/8" wouldn`t just allow the arm to go on further? and I know that if the manufacturers made the arm that thickness then it was to allow a decent amount of contact area but wonder just how over kill that might be for an old boy like me that certainly can`t punch along like you fit youngsters and remembering that this will be ridden with assistance from the electric hub.
Your views would be much appreciated.
Dave
Mine is an ali Shimano Exage, around the square drive hole is a raised section (obviously to give a more wider area on the square drive) I need to shave around 1/8" and basically remove the raised section. This will give me more clearance for the pedal assist rotory magnet that I need.
You are supposed to fit the assembly on the chain wheel side( where looking at mine the bottom bracket spindle has a touch more length before the sq part of the spindle starts and would give the clearance needed) but as pointed out in an earlier thread it would mean removal of my small chain ring and also some grinding of the lugs that hold it meaning no going back.
I presume that the tapered sq in the crank arm is a tight fit along it`s length and removing the 1/8" wouldn`t just allow the arm to go on further? and I know that if the manufacturers made the arm that thickness then it was to allow a decent amount of contact area but wonder just how over kill that might be for an old boy like me that certainly can`t punch along like you fit youngsters and remembering that this will be ridden with assistance from the electric hub.
Your views would be much appreciated.
Dave