Originally Posted by jdoglike
I have a old Trek 330 with 6 speeds in the back. could i change that to a seven speed cassete and not have to change anything but the hub. It has friction shifters and 700cm wheels
I have a 1981 Peugeot which is 126mm Hub spacing with a 6 Speed Maillard Freewheel.
I use a wheelset of Dura Ace Hubs 9/10 Speed Cassette 130mm spacing and Mavic Reflex Rims - Dura Ace 9 Speed Derailleur - Shimano 9 Speed Chain.
All "LBS "Performance Bicycle" mechanics" said it would not work and I would need to change many things. They were "wrong" the wheel dropped right into the frame and shifts perfectly with the Simplex "friction" down tube shifters. I like it better than the newer Shimano Indexed Shifters. The hub width difference is only 4mm and most "steel" frames should allow that.
You may also play it safe and just get a 126mm Cassette Hub which will allow a 7 Speed cassette but I would go for the 9/10 130mm. Perhaps you could try a friends 9 Speed wheeset? It should work but you will only be able to shift 7/8 Speed/cogs with the current Rear Derailleur. The Chain will also need to be changed for the 9 speed cassette but should function well enough to test the frame spacing.
Last edited by wildjim; 10-06-04 at 06:01 AM.