Sometimes the housing is a bit too long, this will increase the friction but it is done to make it possible to change handlebar height etc. The Nexus 8-speed is more rugged than the 7-speed, but it has some well-known failure modes, and there are also well-known ways to prevent failure. Singapore has no important independent bicycle parts manufacturers, but Japanese parent companies, especially Shimano, own extensive production facilities there. This book also is out of print, but copies are available used at a reasonable price. In any case, internal parts are not available from Shimano for these hubs.
Stage 3: [insert name here]’s improved product quality is noticed, [insert name here]’s reputation rises. Instead, there are protrusions on the carrier unit. The best information available on these hubs — including comparative parts lists — is in Sutherland’s Handbook of Coaster Brakes and Internally-Geared Hubs, which is now online on this site.
Needle-bearing and plain-bearing pinions can be identified by their different appearance even in a fully-assembled gear-carrier unit. Even if you could find a source of parts, you might not get the correct generation of parts for the particular hub you have. Shimano’s User Manual has contained the following instructions on how to properly install its quick releases. ■ Important Safety Information Guidelines that require replacement, contact the place of purchase or a bicycle dealer.