First time in a while I've stumbled upon a compatibility issue with retro bits, but here I am.
I'm trying to make a bike complete so I can sell it whole, fully working and ready to ride.
The other night I spent degreasing and fettling cup and come bearings which went well. Today I set aside some time to build the bike.
However, I can't get an 8sp cassette on the freehub. It's a Shimano fh-rm40 which research suggests came in 7sp or 8sp. I'm guessing I have the 7sp (see pics) as I can't get the last cog on the spline.
So, what are my options as the intended gearing is 8sp.
Is it possible to simply switch out the 7sp freehub for an 8sp? If so, what Shimano ones are compatible? I'm sure I must have some Shimano hubs kicking about I can pillage from. Do I need longer axle or worse like a reddish? I'm hoping to avoid anything too time consuming as I need to clear a lot of stuff fast due to renovations and less space afterwards.
Assume it's an Allen key through the hub to remove? Been a while since I've played with anything that wasn't hope or just pulls apart.
Rather annoying as I had the hub spinning perfectly after the service.
Any help gratefully received
I'm trying to make a bike complete so I can sell it whole, fully working and ready to ride.
The other night I spent degreasing and fettling cup and come bearings which went well. Today I set aside some time to build the bike.
However, I can't get an 8sp cassette on the freehub. It's a Shimano fh-rm40 which research suggests came in 7sp or 8sp. I'm guessing I have the 7sp (see pics) as I can't get the last cog on the spline.
So, what are my options as the intended gearing is 8sp.
Is it possible to simply switch out the 7sp freehub for an 8sp? If so, what Shimano ones are compatible? I'm sure I must have some Shimano hubs kicking about I can pillage from. Do I need longer axle or worse like a reddish? I'm hoping to avoid anything too time consuming as I need to clear a lot of stuff fast due to renovations and less space afterwards.
Assume it's an Allen key through the hub to remove? Been a while since I've played with anything that wasn't hope or just pulls apart.
Rather annoying as I had the hub spinning perfectly after the service.
Any help gratefully received