Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.


Crankset for a 3-speed
#1
Hi all,

I'm building a 3-speed path racer style bike using S-RF3 Sturmey Archer Hub.

I'm curious if you can share any input on the choice of chainring size or type of cranksets to consider. I'm looking a 44T or 45T 170 chainring, singlespeed fixed gear crankset.

I have moderate knowledge on how different sizes effects my gear ratios though I'm not certain if I'm overlooking anything.

Any input would be appreciated.
  Reply
#2
Take a look at:
http://sheldonbrown.com/gears/internal.html

how many teeth are on the gear on the hub?

Gear inches - 100 is quite tall, good for down hill or with a very strong tail wind; it is the same as 52x13 with 32-630 tires.

30 is low enough for hills that you might encounter on almost all paved roads.
Nigel
  Reply
#3
(06-08-2013, 11:16 AM)nfmisso Wrote:  Take a look at:
http://sheldonbrown.com/gears/internal.html

how many teeth are on the gear on the hub?

Gear inches - 100 is quite tall, good for down hill or with a very strong tail wind; it is the same as 52x13 with 32-630 tires.

30 is low enough for hills that you might encounter on almost all paved roads.

I have 18T on the hub.

This calculator is interesting! Thanks for your input Nigel.
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
How to improve cycling endurance? I've h...
Today 06:27 PM
Hot Weather Safety
Today 06:05 PM
Variation in Conti GP5000 sizing?
Today 05:42 PM
Budget Gravel Bikes - useful YouTube vid...
Today 03:43 PM
Continued learnings from bikepacking
Today 08:37 AM
Cleats idea. What do you think?
Today 08:28 AM
Has anyone tried one of these portable e...
Today 06:43 AM
2007 Trek Pilot S.P.A. 5.2
Yesterday 09:08 PM
First long distance ride..
Yesterday 09:45 AM
Doctors are Prescribing Cycling
06-28-2025 05:42 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
26 posts
no avatar 2. Flowrider
19 posts
no avatar 3. meamoantonio
13 posts
no avatar 4. rydabent
12 posts
no avatar 5. enkei
10 posts