Retrobike Forum Index

It is currently Sat Dec 03, 2016 3:29 am

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 10 posts ] 
Author Message
 Post subject: Crank length question?
PostPosted: Mon Dec 06, 2010 11:39 am 
Retro Guru
User avatar

Joined: Mon Feb 01, 2010 11:45 am
Posts: 1135
Location: Poppy Fields
Would I notice a lot of difference in reality between a 175 and a 165mm crank? i.e. going from longer to shorter? I have a 170 on my GT and a 175 on the Pace but want a different one really.

Any experience gratefully received.


Top
 Profile  
 
PostPosted: Mon Dec 06, 2010 11:45 am 
Retro Guru
User avatar

Joined: Tue Aug 07, 2007 12:22 pm
Posts: 2942
Location: Platsa, Messinias, Greece
BertR00t wrote:
Would I notice a lot of difference in reality between a 175 and a 165mm crank? i.e. going from longer to shorter? I have a 170 on my GT and a 175 on the Pace but want a different one really.


Why ??

Shorter cranks are (in theory) easier to spin at high cadences but give you less leverage. So why do you feel that you need to go to something as short as 165mm - to cut down on pedal strikes?


Top
 Profile  
 
 Post subject:
PostPosted: Mon Dec 06, 2010 11:55 am 
Retro Guru
User avatar

Joined: Mon Feb 01, 2010 11:45 am
Posts: 1135
Location: Poppy Fields
Seen a used crank I fancy but sadly it is a 165.


Top
 Profile  
 
 Post subject:
PostPosted: Mon Dec 06, 2010 12:24 pm 
Retro Guru
User avatar

Joined: Tue Sep 02, 2008 5:40 pm
Posts: 670
Location: kettering, northants
165's are mainly used by downhillers for better rock clearance supposedly. they are minutely harder to push the same gear as when using 175's but its that small that unless you are super sensitive I doubt you'd notice to be honest...a mate used to run 160mm gusset pigmy cranks as he said his knees didnt hurt as much when spinning sat down..something about his knees not extending as much when rotating :roll:


Top
 Profile  
 
 Post subject:
PostPosted: Mon Dec 06, 2010 12:49 pm 
Retro Guru
User avatar

Joined: Mon Feb 01, 2010 11:45 am
Posts: 1135
Location: Poppy Fields
sex one wrote:
unless you are super sensitive I doubt you'd notice to be honest


That is what I thought to be honest. A little more clearance is a good thing anyway and my legs aren't massively long enough to feel like I was cheating them I don't think.


Top
 Profile  
 
 Post subject:
PostPosted: Mon Dec 06, 2010 2:06 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Mon Oct 15, 2007 9:05 pm
Posts: 9245
I have always used 175mm cranks but my Humu came with 165 DH cranks and I'm finding that the sore knees that I have had on singlespeed bikes have become a thing of the past. Tbh I have not noticed any difference in leverage. I'm now looking for a pair to build up a modern full susser that i own that has pedal strike issues.

so thumbs up for shorties! :wink:


Top
 Profile  
 
 Post subject:
PostPosted: Mon Dec 06, 2010 3:26 pm 
Retro Guru
User avatar

Joined: Tue Sep 02, 2008 5:40 pm
Posts: 670
Location: kettering, northants
Dr S wrote:
I have always used 175mm cranks but my Humu came with 165 DH cranks and I'm finding that the sore knees that I have had on singlespeed bikes have become a thing of the past. Tbh I have not noticed any difference in leverage. I'm now looking for a pair to build up a modern full susser that i own that has pedal strike issues.

so thumbs up for shorties! :wink:


and there's me just thinking that my mate was a fussy old sod :lol:


Top
 Profile  
 
 Post subject:
PostPosted: Mon Dec 06, 2010 10:35 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
User avatar

Joined: Mon Aug 31, 2009 12:26 am
Posts: 16165
Location: Rurally close.
this is something i never really considered or gave any thought to.
i normally just run 170's or 175's (but preferably 170's recently, now that ive put some thought into it)
this is because they are readily available
recently i got an amazing deal on a brand new set of howitzer ruktion cranks, external howitzer bb and wellgo pedals (all new) for £30.
as my second set of hussefelts were looking sorry for themselves (again! hate them!) i bought the howitzers as it was a deal i couldnt turn down (who would)
when i got them it turned out they were 165's and i think my hussefelts were 170's
my bike setup is not far off downhill (36t ring, 11-25 cassette, 16'' frame and im 5'9''ish) but its my commuter/urban assault vehicle, but i havent worried about clipping pedals for years (since being a novice, which now im not) so not fussed there.
got them fitted (with different pedals as the insert stayed on the pedal axle, again!!! :evil: still yet to remove it!)
tested them out on my street, as you do, and noticed the difference for about 50 yards, then back to normal
thought they would be a problem on my half hour commute the next day but they were fine
and have been fine since
doubt you will notice the difference, if you did due to leverage im sure your muscles will adjust and then you wont notice!
sorry for the long post :lol: :lol: :lol:
go for it!!


Top
 Profile  
 
 Post subject:
PostPosted: Mon Dec 06, 2010 11:50 pm 
Retro Guru
User avatar

Joined: Mon Feb 01, 2010 11:45 am
Posts: 1135
Location: Poppy Fields
Great responses guys. Thanks a lot!


Top
 Profile  
 
 Post subject:
PostPosted: Wed Dec 08, 2010 9:46 pm 
retrobike rider
retrobike rider
User avatar

Joined: Mon Dec 31, 2007 1:53 pm
Posts: 1001
Location: Ross on Wye - next door to the Forest of Dean
If you have short legs then short cranks are an advantage - easier to pedal over the tweve o'clock position.

I like them and they were recommended by two other short riders who find the same. They don't come up that often so worth snapping up if you like them,


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 10 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group