Front sprocket question

Chris.L

Pedelecer
Sep 13, 2017
75
21
57
Lincolnshire
Since I bought my 2017Cube race with Bosch's crank drive I have lost weight ,I have dropped from 135.5kg to 94kg ( indoor bike,weights, rowing ,walking and on the ELYFB diet have all helped) I now max out my speed on the cube and wondered if a change of sprocket would give me a speed increase
Cheers
Chris
 

anotherkiwi

Esteemed Pedelecer
Jan 26, 2015
7,845
5,780
The European Union
FSA CK-745, 15T ?

At 9.90€ a pop you could try a couple up to 20T to see which suits you.
 

soundwave

Esteemed Pedelecer
May 23, 2015
10,665
4,376
18t will give you about 35mph with 120rpm at the cranks and 20t will give about 40mph at the same rpm if the bike is unlimited.

maximum effort is required tho so avg speed will differ depending how fit you are.
 

Chris.L

Pedelecer
Sep 13, 2017
75
21
57
Lincolnshire
Thanks all , I have ordered an 18t to give a try , is there a specific tool I need to remove the sprocket
 

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