Bicycle Mechanics - 105 Hubs on 135mm Dropouts

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA

View Full Version : 105 Hubs on 135mm Dropouts

RainmanP
07-07-01, 10:02 AM
This is a follow-up to my thread on dropout width. I just got a pair of wheels with Shimano 105 hubs, Mavic T519 rims, and DT spokes. The 105 hubs are 130 mm while my dropouts are 135. I ordered longer axle, appropriate spacers, and QRs from Harris Cyclery and installed them this morning. I installed the spacers between the cone nuts and lock nuts, 2.5 mm on each side to keep the rim centered and will adjust the derailleur accordingly. I assume this is the correct way to do it, as opposed to putting all the spacers on the non-drive side to keep the freehub/cassette lined up. Though now that I think about it, perhaps the chainline is more important and I SHOULD put all the spacers on the off side and adjust the brakes accordingly. HELP? I'm getting myself more confused by the minute!
Rainman

MichaelW
07-07-01, 11:05 AM
It will probably work like that, but its helps to have a good chainline.
If you add the spacers assymetrically, you then need to re-dish your wheel (tighten the non-drive side and loosen the drive side). By reducing the dish, you make the wheel a lot stronger, which is the primary advantage of 135 over 130.
JonR
07-07-01, 11:34 AM
Originally posted by RainmanP
HELP? I'm getting myself more confused by the minute!
Rainman
Raymond, when you feel confused by something technical like that, just remember me: I have to look at my other bicycle to see how the chain goes around the rear derailleur, in order to reinstall a chain. And even then I sometimes have to do it all over! :confused: :crash:

Just remember me, and you can feel like an expert by comparison.

pat5319
07-23-01, 10:18 AM
Options etc:
If your frame is steel you can "cold set" it (bend) to 130mm as well. If you want to. If the frame you're talking about is a road frame, someone has probably already done this (130 to 135) to accomadate a mtn hub, no problem to reset to 130.

2.5 mm won't affect your chainline much, unless it was already off

If you put the spacers on one side of the hub to keep the same chailine you will have to "re-dish" the wheel

If your chainline is off enough to be a bother you can put a shim/spacer, under your cogs to correct it

You did good so far
Pat