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


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 11-24-13, 03:33 PM   #1
apg
Senior Member
Thread Starter
 
apg's Avatar
 
Join Date: Mar 2013
Location: Manhattan, New York
Bikes: '85 Pinarello track, '74 Peugeot PR-10 L, '73 Motobecane Mirage (RIP 2014), '81 Raleigh Roadster (RIP 2013), '88 Peugeot Santé Fixed (RIP 2014)
Posts: 215
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Customizing for height

Hey guys-
I'm got a 55cm frame I've built up and while I love it, it's a little small for me - 55cm. I'm wondering if there's a trick to make it feel more natural - like getting an extended stem or something?
apg is offline   Reply With Quote
Old 11-24-13, 03:35 PM   #2
prooftheory
pro in someone's theory
 
prooftheory's Avatar
 
Join Date: Jul 2011
Location: Las Cruces, NM
Bikes: FTP
Posts: 3,100
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Is the saddle height right? A longer stem can help with fit on a bike that is too small.
prooftheory is offline   Reply With Quote
Old 11-24-13, 03:42 PM   #3
apg
Senior Member
Thread Starter
 
apg's Avatar
 
Join Date: Mar 2013
Location: Manhattan, New York
Bikes: '85 Pinarello track, '74 Peugeot PR-10 L, '73 Motobecane Mirage (RIP 2014), '81 Raleigh Roadster (RIP 2013), '88 Peugeot Santé Fixed (RIP 2014)
Posts: 215
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Saddle is right. I've got a 90mm stem on it, I'm thinking I try a 110 or a 120mm. Any success with that?
apg is offline   Reply With Quote
Old 11-24-13, 03:48 PM   #4
prooftheory
pro in someone's theory
 
prooftheory's Avatar
 
Join Date: Jul 2011
Location: Las Cruces, NM
Bikes: FTP
Posts: 3,100
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
I use to ride comfortably on a bike that was way too small for me with a 120mm stem. I actually liked the feel of the smaller bike quite a lot and I think this is part of what used to make a lot of fixed-gear dudes ride a too small bike.
prooftheory is offline   Reply With Quote
Old 11-24-13, 04:08 PM   #5
rms13
Senior Member
 
Join Date: Apr 2013
Location: Santa Clarita, CA
Bikes:
Posts: 6,011
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
I have a bike that is slightly big and using a 80-90mm stem makes it very comfortable
rms13 is offline   Reply With Quote
Old 11-24-13, 05:16 PM   #6
apg
Senior Member
Thread Starter
 
apg's Avatar
 
Join Date: Mar 2013
Location: Manhattan, New York
Bikes: '85 Pinarello track, '74 Peugeot PR-10 L, '73 Motobecane Mirage (RIP 2014), '81 Raleigh Roadster (RIP 2013), '88 Peugeot Santé Fixed (RIP 2014)
Posts: 215
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Right. I feel like I see lots of people on frames too small with longer stems. Makes sense now. I'll find one. I'm guessing 120mm is max?
apg is offline   Reply With Quote
Old 11-24-13, 05:25 PM   #7
Spookypedal
Member
 
Join Date: Nov 2013
Location: Spokane
Bikes: Cinelli bolt, miyata liberty conversion
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Might not make a huge difference but a set back seat post will give some extra room
Spookypedal is offline   Reply With Quote
Old 11-24-13, 05:37 PM   #8
prooftheory
pro in someone's theory
 
prooftheory's Avatar
 
Join Date: Jul 2011
Location: Las Cruces, NM
Bikes: FTP
Posts: 3,100
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Quote:
Originally Posted by Spookypedal View Post
Might not make a huge difference but a set back seat post will give some extra room
You shouldn't try to adjust fit with the seat position. It is more important to get the correct positioning with respect to legs relative to the cranks. Dial in the seat position and then add length to the stem as needed.
prooftheory is offline   Reply With Quote
Old 11-25-13, 07:40 AM   #9
gregjones 
Senior Member
 
gregjones's Avatar
 
Join Date: Aug 2012
Location: West Georgia
Bikes: K2 Mod 5.0 Roadie, Fuji Commuter
Posts: 2,781
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by prooftheory View Post
You shouldn't try to adjust fit with the seat position. It is more important to get the correct positioning with respect to legs relative to the cranks. Dial in the seat position and then add length to the stem as needed.
One more time, for the hard of hearing.

USE A FIT CALCULATOR


The simplest of forum searches would have revealed that. It is not a well hidden secret.
__________________
Current Bike Stages--Click PR Logo
PedalRoom
gregjones is offline   Reply With Quote
Old 11-25-13, 07:47 AM   #10
prooftheory
pro in someone's theory
 
prooftheory's Avatar
 
Join Date: Jul 2011
Location: Las Cruces, NM
Bikes: FTP
Posts: 3,100
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Quote:
Originally Posted by gregjones View Post
...fit calculator...
That isn't terribly relevant to the OP's question and I'm not sure why you are quoting me or yelling.
prooftheory is offline   Reply With Quote
Old 11-25-13, 10:02 AM   #11
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,472
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 37 Post(s)
How is using a fit calculator "not relevant" to the OP making changes to his bike to fit him? It would at least remove some of the guess work when it comes to getting a longer stem, etc.
__________________
__________________________________
Scrodzilla is offline   Reply With Quote
Old 11-25-13, 10:18 AM   #12
prooftheory
pro in someone's theory
 
prooftheory's Avatar
 
Join Date: Jul 2011
Location: Las Cruces, NM
Bikes: FTP
Posts: 3,100
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
OP's question was "Can the fit of a bike that is somewhat too small be accommodated with a longer stem?" The answer "use a fit calculator" isn't nearly as relevant as "yes" or "no". The fit calculator will make a recommendation about frame size. OP already has a frame so that doesn't help him. The fit calculator will make a recommendation about stem length, but that will only be with respect to its recommended frame size so that doesn't help OP either.

edit: you edited your question after I posted this. I agree that the recommendation to use a fit calculator may help in making the best guess about the correct length of stem. My problem was that greg seemed to be saying "Don't listen to the guy telling you to get a longer stem rather than adjust the seat and instead use a fit calculator as anybody who reads the forum would." That didn't seem to helpful to me as it could be potentially misleading.

Last edited by prooftheory; 11-25-13 at 10:23 AM.
prooftheory is offline   Reply With Quote
Old 11-25-13, 10:20 AM   #13
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,472
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 37 Post(s)
I agree, the simple math of adding the difference of the recommended top tube length to the recommended stem length would be far too difficult to process.

Apologies for the intrusion.
__________________
__________________________________
Scrodzilla is offline   Reply With Quote
Old 11-25-13, 10:24 AM   #14
prooftheory
pro in someone's theory
 
prooftheory's Avatar
 
Join Date: Jul 2011
Location: Las Cruces, NM
Bikes: FTP
Posts: 3,100
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
The math isn't that easy. He shouldn't buy a hi-rise 120 stem and expect to get a lot of reach for instance. My personal feeling is that what OP should do is take his bike to a shop and have them see what they can do and that would be better than that using a fit calculator and ordering something off the internet. That way they can try different things and see how they work.
prooftheory is offline   Reply With Quote
Old 11-25-13, 12:47 PM   #15
apg
Senior Member
Thread Starter
 
apg's Avatar
 
Join Date: Mar 2013
Location: Manhattan, New York
Bikes: '85 Pinarello track, '74 Peugeot PR-10 L, '73 Motobecane Mirage (RIP 2014), '81 Raleigh Roadster (RIP 2013), '88 Peugeot Santé Fixed (RIP 2014)
Posts: 215
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Okay, all good advice and thank you all for chiming in. I'll take a look at the calc., and will go visit Hal at Habitat for advice on what to do next. Thanks!
apg is offline   Reply With Quote
Old 11-26-13, 01:04 AM   #16
europa
Grumpy Old Bugga
 
europa's Avatar
 
Join Date: Oct 2006
Location: Adelaide, AUSTRALIA
Bikes: Europa, Hillbrick, Road Chief, Repco Superlite (Ol' Rusty)
Posts: 3,328
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by prooftheory View Post
The math isn't that easy. He shouldn't buy a hi-rise 120 stem and expect to get a lot of reach for instance. My personal feeling is that what OP should do is take his bike to a shop and have them see what they can do and that would be better than that using a fit calculator and ordering something off the internet. That way they can try different things and see how they work.
This is why I keep preaching that people need to develop a relationship with their lbs. Last time I was considering something like this, I took my bike to my lbs, we looked at a few necks, installed a couple, then I bought the one that seemed to do the job best.

Seeing Scrod has waded into the fit calculator argument, I'm pretty sure if someone came into his shop asking for help, he'd send them away feeling comfortable that he'd sold them the right stem whereas if someone came in and said that the fit calculator said he needed such and such, Scrod would watch him walk away feeling fairly sure he'd see that customer again with the same problem.

The internet is a wonderful thing but it can not replace an experienced human and anyone imagining that bike fit just comes down to numbers really does not understand the human body and its love/hate relationship with push bikes. Fit calculators MAY give a rough starting point, getting it right with the calculator is just dumb luck (you were lucky enough to fit that particular calculator's paradigm).

Hmmph.

Besides, if he feels cramped, just go for a longer stem and see what happens.

Interestingly, and possibly irrelevant, I've recently fitted Retroshifters to my Europa to replace the ageing Brifters. Because of the different brake levers, I now have effectively 1cm or thereabouts more reach. When I first jump on the bike, it always feels way too stretched and aggressive ... 5km later, it's comfortable and an hour later, I've got none of the hand issues I used to get. Maybe this is a case of dumb luck working in my favour.
europa is offline   Reply With Quote
Old 11-26-13, 10:40 AM   #17
gregjones 
Senior Member
 
gregjones's Avatar
 
Join Date: Aug 2012
Location: West Georgia
Bikes: K2 Mod 5.0 Roadie, Fuji Commuter
Posts: 2,781
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by prooftheory View Post
That isn't terribly relevant to the OP's question and I'm not sure why you are quoting me or yelling.
Nothing at you at all---full support.

"It is more important to get the correct positioning with respect to legs relative to the cranks. Dial in the seat position and then add length to the stem as needed."

How do you get started with correct relative leg/crank position--dial in the seat.
How to you know where to start--as posted before time, and time, and time and time, and time, and time......before----use a fit calculator to get started.
__________________
Current Bike Stages--Click PR Logo
PedalRoom
gregjones is offline   Reply With Quote
Old 11-26-13, 11:28 AM   #18
prooftheory
pro in someone's theory
 
prooftheory's Avatar
 
Join Date: Jul 2011
Location: Las Cruces, NM
Bikes: FTP
Posts: 3,100
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Quote:
Originally Posted by gregjones View Post

How do you get started with correct relative leg/crank position--dial in the seat.
How to you know where to start--as posted before time, and time, and time and time, and time, and time......before----use a fit calculator to get started.
I would recommend doing a knee-over-pedal-spindle type fitting rather than using a calculator for determining saddle position. Some frame factors such as the seat tube angle have an effect on where the saddle ought to be and this isn't accounted for by fit-calculators.
prooftheory is offline   Reply With Quote
Old 11-26-13, 12:03 PM   #19
Scrodzilla
There goes Tokyo
 
Scrodzilla's Avatar
 
Join Date: May 2009
Location: San Diego, CA
Bikes: EAI Bare Knuckle, 1975 Raleigh Pro Track
Posts: 26,472
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 37 Post(s)
I suggest the OP only ride his bike via the internet. Real life stuff fluctuates too much between overrated and underrated to provide any sort of reliable satisfaction.
__________________
__________________________________
Scrodzilla 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 04:01 AM.