Bike Forums - View Single Post - How much slower 20" folder vs 700c?

10-05-23 | 08:04 AM

#121

Fentuz

Senior Member

Joined: Aug 2014

Posts: 1,157

Likes: 441

From: UK

Bikes: customized Dahon Helios 1x10, customized Dahon Smooth Hound 1x11, customized Dahon Hammerhead 8.0 d7, Kinesis GX Race 50(mullet setup 1x11), Forme Calver 37 (1x11), Planet X Giovanissimi 20 (1x9), Orange Zest 20 (1x9)

Quote:

Originally Posted by Jipe

Most 700 wheel size bike use a cassette with a smallest cog of 11t. The other solution to adjust the transmission to the smaller wheel size, instead of only increasing the size of the chainring, is to reduce the size of the smallest cog to 10t or even 9t.

Moving from 11t to 9t is equivalent to moving from 50t to 61t.

Companies making race small wheel bikes like Moulton use a 10t cog.

Yes, Tern did that with shimano capreo (9T cog). or go to XD/XDR with 11gears 10T for SRAM sunrace and 9 on e13. I run that on gravel/cyclocross so I can race with 32 or 36T chainrings

Reply

0