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

New: Take Part in the November Giveaway for a Chance to Win a Hybrid E-Bike Worth $1329


Choosing a crankset
#1
I intend to upgrade to a 11-speed internal Shimano Alfine hub along with the Alfine crankset. However, there are two different chainrings available. The 39T and 45T.

http://www.shimano.com/publish/content/global_cycle/en/us/index/products/0/alfine/product.-code-FC-S500.-type-..html

What are the determinging factors on why I would choose one over the other?

Thanks in advance.
  Reply
#2
what do you have up front now? is the rear that you are getting similar in ratio to what you are changing too? Then ask yourself what do you expect or hope to achieve with the end result.
if you live and ride in a hilly area you may want the 39t, if mostly flat and you want the top end speed then go with the 45t
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply
#3
Thanks for the reply painkiller. I currently have a triple chainring Shimano hyperdrive. I plan to pair the new crank with a 20T rear cog, which is also a Shimano Alfine component.

Ideally it wil be used for my commute which is consists of some open street paths and mole hills in the city. It would be geared towards general all purpose riding and some light touring.
  Reply
#4
maybe there is something here that may help you decide, If unsure Iwould go with 39t. That would be somewhere in the middle of what I think a lot of people use.
http://allseasonscyclist.com/2012/07/13/shimano-alfine-11-speed-internal-geared-hub/
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply
#5
I'm leaning towards the 39T as everything I've read has referenced it.

Thanks for the link btw, the article was an excellent read. Cheers!
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
What was your favourite bicycle?
Today 06:23 PM
Traveling to texas
12-10-2024 10:06 PM
Remedies for contaminated disc rotors
12-10-2024 07:29 PM
Gears and derailleur misalignment
12-10-2024 05:15 PM
What was your first bicycle?
12-10-2024 01:41 AM
Andre leducq bike. Any idea on value
12-09-2024 11:51 PM
Pogačar's 2024 dominance
12-09-2024 07:48 PM
Beginner Mountain Biking Tips
12-09-2024 05:55 PM
How often check or change mechanical dis...
12-09-2024 12:44 AM
Looking for Recommendations: E-Trike for...
12-08-2024 10:50 PM

[-]
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. Alexjohnson
35 posts
no avatar 2. GirishH
16 posts
no avatar 3. meamoantonio
11 posts
no avatar 4. Flowrider
11 posts
no avatar 5. ReapThaWhirlwind
9 posts