Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Clydesdales/Athenas (200+ lb / 91+ kg) Looking to lose that spare tire? Ideal weight 200+? Frustrated being a large cyclist in a sport geared for the ultra-light? Learn about the bikes and parts that can take the abuse of a heavier cyclist, how to keep your body going while losing the weight, and get support from others who've been successful.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-22-09, 10:04 AM   #1
BigPolishJimmy
Senior Member
Thread Starter
 
BigPolishJimmy's Avatar
 
Join Date: May 2008
Location: Southwest Michigan
Bikes: Fuji Monterey, Schwinn Traveler, Fuji Special Road Racer, Gitane Interclub, Sun EZ-1, Schwinn Frontier, Puch Cavalier, Vista Cavalier, Armstrong, Raleigh Sports, Schwinn Stingray
Posts: 1,563
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Have any clyde/athenas tried longer cranks?

Ok, I've been messing with a lot of different things trying to get a good fit. Saddles, frames, handlebar types, height of seat and bars etc. I'm sooooooo close I can taste it. I fixed up an old Brooks B-72 and after 1 ride I can see if I was able to sit in the sweet spot it'd be the best saddle I've ever ridden. The problem is that even with a long seat post and getting the height I need I still feel cramped. I like to pedal on the balls of my feet, I'm using platforms and that position feels like I have the best contact, flexibility and control. I am getting enough height when my pedal is at it's lowest position, but I still find myself sitting about 2 inches back further on the saddle then where I believe the sweet spot would be. On the brooks this happens to be right on the rivets. I'm almost mostly comfortable on my current main bike as far as being bent over and arm fatigue, but I still think I'll put a taller stem on this bike as well.

It could be that the bike frame is just too small, but I'm not sure I'm buying that. The top tube length is 25 inches, which is pretty good, I've got a small amount of crotch-clearance in the standover height. With the tall stem and the tall seat post I get all the height I need and feel good bent over, but just can't get the saddle back any further. The bmx layback seatpost does not come in the size for this bike, I have one installed on my other road bike, but it is rigged with a innertube and not an elegant solution. Also it places the saddle too high for my liking so that I can only fit a very hard saddle on it. In short... it doesn't work in this application.

I did a search on crank lenght and found a lot of mixed opinions, so to narrow what I'm after:

Has anyone here installed longer cranks and found that it allowed them to sit a bit more forward in the saddle?

Or have you had to move your saddle forward to adjust for the new fit?

Thanks in advance,

Jim
BigPolishJimmy is offline   Reply With Quote
Old 06-22-09, 10:43 AM   #2
CliftonGK1
Senior Member
 
CliftonGK1's Avatar
 
Join Date: Jul 2006
Location: Columbus, OH
Bikes: '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2015 Trek Domane 6.2 disc
Posts: 11,380
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I can't remember how tall you are. I'm 6'6" and tend to like 175mm cranks. Longer than that and I think you have to start looking at the Zinn big'n'tall stuff.

You might look to get a Thomson set-back seat post before investing in longer cranks. That may solve the issue of not being on the sweet spot of your saddle. Brooks are notorious for having short rails and less fore/aft adjustability than most padded hardshell saddles.
CliftonGK1 is offline   Reply With Quote
Old 06-22-09, 11:31 AM   #3
late
Senior Member
 
late's Avatar
 
Join Date: Oct 2002
Location: Southern Maine
Bikes:
Posts: 8,383
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 305 Post(s)
Cranks won't do what you want. Longer up is also longer down...

If you could show us a pic taken from the side on the bike with the crankarm we can see point down at the ground; that would help us a lot.

Is your seatpost a 440? They do make them that long.
late is offline   Reply With Quote
Old 06-22-09, 11:33 AM   #4
BigPolishJimmy
Senior Member
Thread Starter
 
BigPolishJimmy's Avatar
 
Join Date: May 2008
Location: Southwest Michigan
Bikes: Fuji Monterey, Schwinn Traveler, Fuji Special Road Racer, Gitane Interclub, Sun EZ-1, Schwinn Frontier, Puch Cavalier, Vista Cavalier, Armstrong, Raleigh Sports, Schwinn Stingray
Posts: 1,563
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by late View Post
Cranks won't do what you want. Longer up is also longer down...

If you could show us a pic taken from the side on the bike with the crankarm we can see point down at the ground; that would help us a lot.

Is your seatpost a 440? They do make them that long.
Longer up or down isn't a problem, I have a long seat post and can even over-extend myself if I want to. It's that it feels tight mid-pedal, so I guess longer forward--or sitting further back--seems to be what I'm after and I'm not sure that I'll get that with a larger/taller frame. I'll try to get a picture tonight.

Last edited by BigPolishJimmy; 06-22-09 at 11:38 AM.
BigPolishJimmy is offline   Reply With Quote
Old 06-22-09, 11:40 AM   #5
JBHoren 
Living 'n Dying in -Time
 
JBHoren's Avatar
 
Join Date: Dec 2008
Location: Greenacres, FL
Bikes:
Posts: 601
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
My Cannondale came with 175mm cranks, and that's real comfortable when pedaling (I'm 6'1"). My Trek, however, came with 170mm cranks, and I can feel the difference; so much so, that I purchased a matching 175mm spider/arm for it, and just need to make the switch. I also swapped-out the original stem for a Nitto DirtDrop (100mm), and that helps.

I ride platforms on both bikes.
__________________
1990 Bianchi Volpe
JBHoren is offline   Reply With Quote
Old 06-22-09, 04:24 PM   #6
Bianchigirll 
Bianchi Goddess
 
Bianchigirll's Avatar
 
Join Date: Apr 2009
Location: Camp Hill, PA
Bikes: Too many to list here check my signature.
Posts: 22,433
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Hello I have never develope a good "spinning" pedal style and somehow gravitated to 172.5's I do not know if this makes a real difference or if it just in my head.
__________________
Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,

Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SOLD, '?? Jane Doe (still on the drawing board), '90ish Haro Escape
Bianchigirll is offline   Reply With Quote
Old 06-22-09, 06:20 PM   #7
bigfred 
Senior Member
 
Join Date: Jan 2009
Location: NZ
Bikes: More than 1, but, less than S-1
Posts: 3,834
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm riding 180mm cranks and wouldn't go shorter unless I had no choice. However, it sounds like what you're after is greater saddle set back, not crank length. The two achieve slightly different goals.

Crank length will provide greater leverage and increase the range of motion through which your muscle and skeleton are working. They also increase the distance aft that your feet will travel as well as forward. Additionally, without going to Zinn or Lightning cranks your only gaining 5mm going from 175 to the mass produced max of 180mm.

Saddle set back will more easily effect the position of your knee in relationship to the pedal spindle and in general the angle between your leg and torso for a given handlebar position. You also have much more than 5mm of adjustability here and without spending on custom cranks.

Have you measured your knee position in relationship to pedal spindle with cranks at 3 o'clock? That's probably the first thing to determine before any meaningful advice can be determined.
__________________
Birth Certificate, Passport, Marriage License Driver's License and Residency Permit all say I'm a Fred. I guess there's no denying it.
bigfred is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 11:57 PM.