My Pro Connect has now reached 11500 miles using the original chain and sprockets. Last week, the chain started slipping on the heavily worn rear sprocket, thus exposing my magnificent testicles to the perils of a heavy impact on the crossbar. It had always been my intention to continue until destruction where the drivetrain is concerned, just to see how far it is safe to go. In anticipation of a sudden failure and not wanting to be off the road, I purchased all of the replacement parts from 50 Cycles during February last year.
This afternoon I have removed the rear wheel and changed the rear sprocket. (Thank you again James C for your excellent guide) This part of the job went extremely well, even the snap ring went back on easily. I was quite shocked to see just how worn the sprocket was and it had several teeth missing! (I'll try to post a photograph later when I can get to a computer.)
Next came the chain. The old one split and came off easily. I then reached for the new one and............
I may be a twat for not checking the chain / sprockets before embarking on the job. I was certainly made to feel like a twat when I purchased the chain, so perhaps there is a message for me here. You see when I ordered the new chain from 50 Cycles I knew that there were two types, one for their ilegal, "S" model with derailleur gears and another type for the Alfine hub geared model. When I phoned 50 Cycles, I rather laboured the point that I needed a chain for the Alfine model. This was met with a rather off-hand, "don't you think we know what we're doing" attitude. I gave way to their superior knowledge, after all they sell these bikes and maintain a spares supply so I felt a little foolish for even asking.
........ I immediately knew that something wasn't right. The new chain, supplied by the superior experts, is 150 mm shorter than the old one and it is thinner too. So thin in fact, that it won't seat on the new chain wheel. I am now stuck with the bike in pieces, in need of a new chain.
To say that I am annoyed by this is putting it mildly. First and foremost, I need to source the correct chain. Two correct chains I suspect. They will then need splicing together to form the correct length.
I'm just going to cut my loses at 50 Cycles and bin / give away the new, useless to me, chain. I don't want to have anything to do with them over this. So, can any kind forum member / Pro Connect with Alfine gear owner, tell which type of chain I need to buy? Chain width is the important thing, I can cut and join it to the correct length.
I have made some measurements of the old chain. There appears to be two link sizes and these are as follows:
Larger link
Inner 5.57 mm
Outer 7.96 mm
Small Link
Inner 3.83 mm
Outer 5.53 mm
Thank you.
This afternoon I have removed the rear wheel and changed the rear sprocket. (Thank you again James C for your excellent guide) This part of the job went extremely well, even the snap ring went back on easily. I was quite shocked to see just how worn the sprocket was and it had several teeth missing! (I'll try to post a photograph later when I can get to a computer.)
Next came the chain. The old one split and came off easily. I then reached for the new one and............
I may be a twat for not checking the chain / sprockets before embarking on the job. I was certainly made to feel like a twat when I purchased the chain, so perhaps there is a message for me here. You see when I ordered the new chain from 50 Cycles I knew that there were two types, one for their ilegal, "S" model with derailleur gears and another type for the Alfine hub geared model. When I phoned 50 Cycles, I rather laboured the point that I needed a chain for the Alfine model. This was met with a rather off-hand, "don't you think we know what we're doing" attitude. I gave way to their superior knowledge, after all they sell these bikes and maintain a spares supply so I felt a little foolish for even asking.
........ I immediately knew that something wasn't right. The new chain, supplied by the superior experts, is 150 mm shorter than the old one and it is thinner too. So thin in fact, that it won't seat on the new chain wheel. I am now stuck with the bike in pieces, in need of a new chain.
To say that I am annoyed by this is putting it mildly. First and foremost, I need to source the correct chain. Two correct chains I suspect. They will then need splicing together to form the correct length.
I'm just going to cut my loses at 50 Cycles and bin / give away the new, useless to me, chain. I don't want to have anything to do with them over this. So, can any kind forum member / Pro Connect with Alfine gear owner, tell which type of chain I need to buy? Chain width is the important thing, I can cut and join it to the correct length.
I have made some measurements of the old chain. There appears to be two link sizes and these are as follows:
Larger link
Inner 5.57 mm
Outer 7.96 mm
Small Link
Inner 3.83 mm
Outer 5.53 mm
Thank you.
