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internally geared hubs...(5 posts)

internally geared hubs...phlegm
Aug 12, 2002 11:23 AM
Anyone use any of them on the road? What are your thoughts of a road bike (not for racing) with them?
Aug 12, 2002 1:46 PM
My folding commuter bike has a 3spd Sturmey-Archer. I've never really thought of how they would work on a legitimate road bike but I would think that it would work if you had proper dropout spacing for the hub, chainline alignment and the proper shifters.

They are relatively clean (no der or jockey wheels) and shift like they are supposed to. The only thing that is sort of wierd is unlike a standard deraileur, you have to bascially coast for a fraction of a second for the gears to shift. They might be difficult to service since there is a whole lot going in the hub. I haven't had to service mine yet, though.

re: internally geared hubs...curlybike
Aug 12, 2002 3:15 PM
I have a mtb with a Shimano Nexus 7-sp that I ride on the road. I feel that there is a lot of lost energy in that hub. Another bike with standard drive, about the same weight and tires seems to not tire me out as fast. Seems that all internal hubs that I have seen always click as you go down the road. There are a lot of pawls in there that are ratcheting while their buddies are holding the load for their gear ratio. They are pretty simple and require little maint. They do require a special grease though. Sturmeys had a special oil that I have not seen in years.
I'm not a fan of internal hubs.Spoke Wrench
Aug 13, 2002 6:12 AM
My biggest objection is that they can convert a flat tire from a 10 minute task my the side of the road into an hour long job in the shop.

I also don't have the "touch" for adjusting the shift cable tension on the workstand. The only way I can tell for sure if the bike is hitting on every gear is to test ride it. I also feel that the cleanliness and maintenance benefits are easy to overstate. You still have to lube the chain and the more mechanically efficient derailleur systems are pretty darn reliable too.

After having said all of that, I think that the next big improvement in bicycles will be to some form of internal hub. I'm thinking belt drive with a continuously variable transmission that has a control so that you can select the amount of effort that you want to input.
Only three problemsKerry
Aug 13, 2002 5:13 PM
They're heavy, inefficient, and expensive. If it weren't for that, I'm sure they'd be the next wave.