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Technical & Reference Section => Tech and Restoration => Topic started by: martylaa on May 19, 2010, 03:36 PM

Title: 180mm or 175mm Crank Arms? Whats the point?
Post by: martylaa on May 19, 2010, 03:36 PM
Never raced for a team when i was a kid so not sure about this, but whats the point of making cranks 5 mm longer or shorter, would anyone notice, we're talking about 5mm extra or less length here, surely no-one would know the difference would they?
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: Jon The Bassist on May 19, 2010, 03:51 PM
You definitely do notice! More leverage with longer cranks and they suit bigger riders.  They also have the effect of making a gearing feel easier but you have to move your legs in a bigger circle.  Likewise shorter cranks for littler dudes, less leverage but can be easier to spin as your legs have to go in a smaller circle.
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: bmxboy70 on May 19, 2010, 03:54 PM
So...Jon do you consider yourself a bigger ridder or a smaller one? Just for referance? :LolLolLolLol:
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: Jon The Bassist on May 19, 2010, 03:55 PM
...erm, probably bigger in my case  :LolLolLolLol:
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: bmxboy70 on May 19, 2010, 04:00 PM
It depends on the original size ::)  :LolLolLolLol:
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: THIRSTYKIRSTY on May 19, 2010, 04:22 PM
BUNCH OF PERVS,,,,,3 POSTS AND ITS TURNED TO PORN

JUST FOR THE RECORD

I RUN 175 CRANKS AS I CAN SPIN EM A LOT BETTER THAN 180,S AND THE DIFFERENCE OUT THE GATE IS MINIMAL,,,ASK ANYONE WHO IS ON GATE NEXT TO ME

IF YA LANKY LEGGED ,,RUN LONGER CRANKS

RUSS  No 3
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: martylaa on May 19, 2010, 04:32 PM
i'm say 6ft 1"
could i ride 175mm's on a cruiser or should i go 180mm's, not racing just for riding in general and having a piss about
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: brummie on May 19, 2010, 04:34 PM
But it's only 5mm, if my knob grew by 5mm, the missus would still be unimpressed  :LolLolLolLol:

Bru  :daumenhoch:

tiz 5mm each arm tho bru, so 10mm overall  :LolLolLolLol:
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: THIRSTYKIRSTY on May 19, 2010, 04:48 PM
175 ON A CRUISER IS SPOT ON FOR RACE OR RIDIN MATE

THIS FOR YA NEW SPECIAL ORDER :daumenhoch: :daumenhoch:
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: martylaa on May 19, 2010, 04:50 PM
aye can still buy those profile re-pop cranks in 175mm's thats why i'm asking, also just seen the redline repop's also lot cheaper as well than the profiles
thanks
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: Gish on May 19, 2010, 04:54 PM
BUNCH OF PERVS,,,,,3 POSTS AND ITS TURNED TO PORN

JUST FOR THE RECORD

I RUN 175 CRANKS AS I CAN SPIN EM A LOT BETTER THAN 180,S AND THE DIFFERENCE OUT THE GATE IS MINIMAL,,,ASK ANYONE WHO IS ON GATE NEXT TO ME

IF YA LANKY LEGGED ,,RUN LONGER CRANKS

RUSS  No 3
its not yer 175's we are watching out of the gate it's yer flecking elbows ya crank :LolLolLolLol:
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: Peter J on May 19, 2010, 05:16 PM
I think at my age and level it makes no difference I’ve used 180’s and thought they were too long (I’m 5’ 9”) I’d be much happier with 175’s or even 170’s....I've got short powerful legs  :crazy2: so a shorter crank feels better for me.


TBH put a pair of trainers on with a thick sole or some deep caged pedals and that’ll add 5mm to your crankage.
Title: Re: 180mm or 175mm Crank Arms? Whats the point?
Post by: bobafett on May 19, 2010, 06:30 PM

I had 170's on my 82 supergoose rider and fookin hated them  :LolLolLolLol:

Got 180 redline twin pinch jobbies on her now and I love em - great cranks for a rider IMHO  ;)

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