Thread: Brompton Mods - for a newbie
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Old 09-16-11 | 06:43 PM
  #83  
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Drdul
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From: Vancouver, BC

Bikes: Bike Friday Air Friday, Rans V-Rex recumbent

Originally Posted by dynaryder
I've seen 5sp wheels listed on eBay. How much weight do they add over the stock 3sp? And can you still run the 2sp derailleur with it?
The 5-speed S-RF5(W) hub is listed as 1090 g, whereas the 3-speed Brompton BRW hub is listed as 940 g. That's 150 g more = 1/3 lb. AFAIK you can run it with the 2-speed derailleur for a total of 10 gears, but I would lose the derailleur and extra cog to save about 100 g, which means the 5-speed conversion would be almost the same weight as the 6-speed stock option.
Last edited by Drdul; 09-16-11 at 06:44 PM. Reason: Fixed my typical sloppy typing
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