Go Back  Bike Forums > Bike Forums > Fitting Your Bike
Reload this Page >

Shorter Cranks for Climbing

Notices
Fitting Your Bike Are you confused about how you should fit a bike to your particular body dimensions? Have you been reading, found the terms Merxx or French Fit, and don’t know what you need? Every style of riding is different- in how you fit the bike to you, and the sizing of the bike itself. It’s more than just measuring your height, reach and inseam. With the help of Bike Fitting, you’ll be able to find the right fit for your frame size, style of riding, and your particular dimensions. Here ya’ go…..the location for everything fit related.

Shorter Cranks for Climbing

Old 12-11-20, 03:26 AM
  #51  
cubewheels
Senior Member
 
Join Date: Jun 2020
Location: Manila, Philippines
Posts: 1,538

Bikes: A really old BMX bike, Phantom 20 kid's MTB, Jackal Mio Gravel Bike

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 677 Post(s)
Liked 288 Times in 231 Posts
Originally Posted by Wilmingtech View Post
Mentioning Cranks on BF is like mentioning oil on any number of automobile forums.

Anyways I was listening to this Podcast from Trainer Road "Ask a Cycling Coach" Episode 287 and starting @ 01:36:00 They have a great discussion with quite a few examples and research on crank length -
Here is the excerpt from that episode - Trainer Road "Ask A Cycling Coach Episode 287

Overall it seems that you will be better off with shorter cranks than long ones. Most of the reasoning seems to be around the ability to have a faster cadence with shorter cranks with less effort.

-Sean
I have used both correct crank size 170mm and 150mm (too short) crank lenth few months each.

I'm simply faster with the short crank. It's not just easier for me to spin at higher cadence with the short crank but A LOT easier so I end up being more efficient with 150mm. I change gear less often too. Just leave it at lower gears and spin like crazy to get faster without worry of blowing up. Great for rolling hills. Much harder to do with longer cranks, especially spinning at very high cadence.

I only found one advantage with longer cranks being faster in climbs - if you're going to spend considerable time pedaling out of the saddle. But if you're going to pedal out of the saddle only for short periods of time in climbs, the short crank still wins in climbing performance, providing you have smaller (easier) gears to drive with short cranks.
cubewheels is offline  
Old 12-13-20, 09:00 AM
  #52  
rydabent
Senior Member
 
Join Date: Apr 2010
Location: Lincoln Ne
Posts: 8,781

Bikes: RANS Stratus TerraTrike Tour II

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2192 Post(s)
Liked 552 Times in 331 Posts
Originally Posted by Wilmingtech View Post
I am 5'11 and a 185 lbs and am typically more comfortable on a 53.5-54cm (within certain geometries). I currently own a Ridley Helium in a medium which is like a 56.

I have the bike setup to fit me and it's not uncomfortable on long rides. My question is...

I have a long ride tomorrow that is mostly climbing (15 miles up 4000' and another 7 up 2000'). Would it benefit to slide the seat up a half cm and throw a 172.5 crank on there? (I typically ride with a 175)

I've got the crankset here in the garage and it would take me all of maybe 30 min to set it up. Just not sure how much the shorter crankset would help, if at all.

Thanks!

-Sean
IMO as a somewhat taller person, the longer crank arms should work well for you. If you can handle longer crank arms, logic dictates you can apply greater torque with the proper gearing.
rydabent is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.