| | | | | Crank Length Discussion Yields Valuable Insight Issue No. 620 - 05/01/2014 ISSN 1536-4143  
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| | | From the Top Views from the Editor |  | | John Marsh | |
Crank Length Discussion Yields Valuable Insight
As happens from time to time as the emails fly around the RBR network, a thread will strike us as something that is valuable information to share with all our readers. Today’s column is just such a thread, based on an Ask RBR a Question email posed by Premium Member Tom Chaney.
One of the perks of a Premium Membership is the opportunity – if you can’t find what you’re looking for in a search of our site – to email us your question directly. We’ll route it around and provide you a direct response (sometimes more than one!). Tom recently posed just such a question. Here’s what he asked:
I am a 71-year-old cyclist and ride a Moots Vamoots RSL road bike with a 172.5mm SRAM Red crank. I am 5' 6" (1.68m) tall with a 31" (78.7cm) inseam. I had a bike fit last week and the fitter told me that I should be riding a 165mm crank. The owner of the shop from which I purchased my bike said that he would not put anyone on a 165mm crank unless the rider was 5' 0" (1.52m) tall. I have found a few articles that support the use of a shorter crank. Your thoughts please.
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| | Ask Coach Fred Training & Nutrition Tips |  | | Fred Matheny | | Should Early Season Rides Include Intervals?
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| | Jim's Tech Talk Mechanical & Product Advice |  | | Jim Langley | | Cheating Up to a Bigger Cog
Editor’s Note: Jim’s traveling this week, so we’re running a Best Of Tech Talk. This one springboards from a reader question:
Is it possible to run a bigger cog than Shimano states, but without replacing the short-cage rear derailleur with a long one?
Jim’s Reply: The short answer is: yes . . . probably. There’s reason to hedge just a bit.
The way to figure what works with a derailleur is to check its specifications. Every derailleur has a large-cog limit and a chain-wrap capacity.
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| | | Also in this Issue Our Regular Weekly Features
News & Reviews: May is National Bike Month in the U.S. • More Wind Tunnel Insight from TT Champ Sandy Scott • Why Bicyclists Hate Stop Signs • Braving the Deep, Deadly South on a Bicycle
No Problem: Cycling Jargon Defined: Part 1 of 5
Quick Tips: Additional First-Aid Suggestions from Readers
Cadence: Bee Stings, And How to Deal with Them
Question of the Week: What Crank Length Do You Ride on Your Road Bike?
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| | Enjoy Your Ride! John Marsh
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