Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

Changing stem length?

Search
Notices
Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Changing stem length?

Thread Tools
 
Search this Thread
 
Old 09-13-11 | 02:38 AM
  #1  
todayilearned's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
Changing stem length?

So I picked up my new bike (Scattante CFR Comp 58cm). I took it out for a quick 1 hour ride today and made some tiny adjustments to the seat. It seems to fit really well but the only issue is since I had to move the saddle back a bit the shifters are further than I would like.

While riding I kept moving my hands back to alleviate slight back pain I was getting and slight numbness in my hands.

Unfortunately the lower size to 58 is 55 which would probably be too small since I'm 6'0'' - 6'1''. I would have to get a completely different bike which would be a PITA.

I'm wondering if changing the stem from a 120mm to 100mm or even 90 might fix this issue I'm having?

Current stem details:
Alloy, ID: 28.6mm, -5 degree, Bar bore: 31.8mm, Length: 120mm(58/61cm)

Last edited by todayilearned; 09-13-11 at 02:41 AM.
todayilearned is offline  
Reply
Old 09-13-11 | 02:47 AM
  #2  
Senior Member
 
Joined: Jun 2009
Posts: 493
Likes: 0
From: Huntington Beach
Probably.....More than likely a 100 would do it. But didn't the guys at Performance help you with size and fit?
When you are on the hoods , where is the front axle forward of the handlebar, behind it or in front of it? A fair guide is you shouldn't see it. And what about stem height?
AlexZ is offline  
Reply
Old 09-13-11 | 02:49 AM
  #3  
Banned.
 
Joined: May 2010
Posts: 8,651
Likes: 3
From: Uncertain
It might. Why did you move the saddle back if the reach is too much for you? Are you sure this was the right thing to do?

We can't really advise you on fit on the internet, especially without seeing pictures of you on the bike. You need to have someone look at you who knows what they're looking at. But yes, flipping the stem, or getting a shorter one, might work.

Unlikely that you should think about getting the smaller bike, though. The shorter headtube would mean that you'd have a bigger drop from saddle to handlebars, and that would give you a less upright posture and increase the pressure on your back and hands.
chasm54 is offline  
Reply
Old 09-13-11 | 03:04 AM
  #4  
todayilearned's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
Originally Posted by AlexZ
Probably.....More than likely a 100 would do it. But didn't the guys at Performance help you with size and fit?
When you are on the hoods , where is the front axle forward of the handlebar, behind it or in front of it? A fair guide is you shouldn't see it. And what about stem height?
When I went in to pick up the bike the only person there to fit it was some kid my age. He was a nice guy but he just looked at me and in 2 mins adjusted the seat real quick. I told him thanks and just took the bike home.

- Adjusted the seat height so slight bend in knee when foot is all the way down. Had to move seat up a touch.
- When pedals are level to eachother I made sure my knee is in line with the ball of my foot. This is where I had to slightly adjust my seat since it was too far forward.
- Tilted the seat down a bit since it was at default level. It was slightly poking me and making me a bit numb in the area.

The seat finally feels good since I feel it more on my "sit bones" rather than the front area.

- Handlebar infront of axela bit. This is what originally made me think a shorter stem would fix the issue. As for the height I really don't know. I know the description says -6 degrees but I think it's inverted since it's got a slight rise.


Originally Posted by chasm54
It might. Why did you move the saddle back if the reach is too much for you? Are you sure this was the right thing to do?

We can't really advise you on fit on the internet, especially without seeing pictures of you on the bike. You need to have someone look at you who knows what they're looking at. But yes, flipping the stem, or getting a shorter one, might work.

Unlikely that you should think about getting the smaller bike, though. The shorter headtube would mean that you'd have a bigger drop from saddle to handlebars, and that would give you a less upright posture and increase the pressure on your back and hands.
This is what I thought.
todayilearned is offline  
Reply
Old 09-13-11 | 04:57 AM
  #5  
K&K_Dad's Avatar
Schleckaholic
 
Joined: Apr 2008
Posts: 1,230
Likes: 1
From: Carteret Co., NC, USA

Bikes: '08 Trek 1.2, Schwinn Avenue Hybrid, '11 GT Sport

the 120 is probably more intended for the taller guys with longer arms, that being said. If you have short(er) arms you probably need a smaller stem. But along those same lines, what is the reach of your bars? Take it back and see if you could swap it out for a smaller one(stem).

Why manufacturers think bigger components for bigger bikes is beyond me.
K&K_Dad is offline  
Reply
Old 09-13-11 | 05:22 AM
  #6  
thump55's Avatar
I got 99 problems....
 
Joined: Aug 2008
Posts: 2,087
Likes: 3
From: Does anyone know where the love of God goes, when the waves turn the minutes to hours?
Originally Posted by todayilearned
While riding I kept moving my hands back to alleviate slight back pain I was getting and slight numbness in my hands.

I'm wondering if changing the stem from a 120mm to 100mm or even 90 might fix this issue I'm having?

I hate to state the obvious, but yes, if moving your hands back 2 cm feels better, than a 2 cm shorter stem will feel better.
thump55 is offline  
Reply
Old 09-13-11 | 07:04 AM
  #7  
Menel's Avatar
Senior Member
 
Joined: Jan 2009
Posts: 1,155
Likes: 2
From: GA

Bikes: Helix, HonkyTonk, NailTrail

Originally Posted by todayilearned
While riding I kept moving my hands back to alleviate slight back pain I was getting and slight numbness in my hands.

I'm wondering if changing the stem from a 120mm to 100mm or even 90 might fix this issue I'm having?
That's quite reasonable.

Originally Posted by chasm54
It might. Why did you move the saddle back if the reach is too much for you? Are you sure this was the right thing to do?
Most likely.

Most fit starts with KOM mentality (right or wrong), it's a relationship between saddle and knees. The idea is to get that correct so you don't have orthopedic issues. Then you adjust reach separately and independently of that, such as with stem length, flipped or not, bar reach, bar drop, spacer stack.
Menel is offline  
Reply
Old 09-13-11 | 07:31 AM
  #8  
merlinextraligh's Avatar
pan y agua
20 Anniversary
 
Joined: Aug 2005
Posts: 31,810
Likes: 1,232
From: Jacksonville

Bikes: Willier Zero 7; Merlin Extralight; Calfee Dragonfly tandem, Calfee Adventure tandem; Cervelo P2; Motebecane Ti Fly 29er; Motebecanne Phantom Cross; Schwinn Paramount Track bike

Originally Posted by chasm54
It might. Why did you move the saddle back if the reach is too much for you? Are you sure this was the right thing to do?
The OP is approaching it correctly. You don't adjust reach to the bars by seat position.

You get your position over the pedals dialed in by adjusting the seat. Then you adjust the reach to the bars as necessary once you have seat position correct.

[edit Menel beat me to it]
__________________
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
merlinextraligh is offline  
Reply
Old 09-13-11 | 07:34 AM
  #9  
Senior Member
20 Anniversary
 
Joined: Jul 2003
Posts: 8,546
Likes: 5
From: Boulder, CO
^^KOM? You mean KOPS?

anyway, yeah, you should call the shop and make an appointment with their most experienced fitter, and if they don't have one, try another shop - it's worth getting the fit right, and worth paying to do so. Especially if there is a question about if it's the right size frame, do this sooner rather than later, so you have half a chance at switching sizes if needed.
valygrl is offline  
Reply
Old 09-13-11 | 05:45 PM
  #10  
todayilearned's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
Originally Posted by thump55
I hate to state the obvious, but yes, if moving your hands back 2 cm feels better, than a 2 cm shorter stem will feel better.
Haven't been riding long. Wanted to make sure I was approaching the problem correctly.

---

Went to the LBS and got a new specialized stem 90mm. Amazing how that just changed the fit of the bike. No more hand numbness or lower back pain
todayilearned is offline  
Reply
Old 09-13-11 | 09:05 PM
  #11  
Lexi01's Avatar
Senior Member
 
Joined: May 2011
Posts: 659
Likes: 0
From: Geelong, Australia

Bikes: Cannondale Supersix Hi-Mod / Scott Spark 930 / Scott Sportster 20 / Jamis Allegro 2.0

Originally Posted by todayilearned
Haven't been riding long. Wanted to make sure I was approaching the problem correctly.

---

Went to the LBS and got a new specialized stem 90mm. Amazing how that just changed the fit of the bike. No more hand numbness or lower back pain
Depending on how long you've been riding a road bike you might find you'll want to put the longer stem back on at some point...so don't put it on eBay yet.
Lexi01 is offline  
Reply
Old 09-13-11 | 09:10 PM
  #12  
Senior Member
 
Joined: Nov 2009
Posts: 7,075
Likes: 6
Originally Posted by Lexi01
Depending on how long you've been riding a road bike you might find you'll want to put the longer stem back on at some point...so don't put it on eBay yet.
agreed. im the same height as you and also have a 58mm scattante (but a different model). when i first built it up i used a 100mm stem. now i am using a 120mm.
thirdgenbird is offline  
Reply
Old 09-13-11 | 09:12 PM
  #13  
Senior Member
 
Joined: Apr 2011
Posts: 73
Likes: 0
From: Peoria, Arizona
I have a 2005 Scattante CFR in size 58.

I am 6'-1" with long arms.

I changed the 120mm stem to a 100mm and it was much better.
trussdude is offline  
Reply
Old 09-13-11 | 09:13 PM
  #14  
Cpt.America's Avatar
Senior Member
 
Joined: Aug 2011
Posts: 99
Likes: 0
From: Port Townsend, WA, USA

Bikes: Cannondale Supersix

It's funny you posted this! I am 6'1", a bit big for a 56, so I am on a 58. But when my seat is set at just the right spot, I felt like I was reaching JUST a tad... So my local bike shop gave me a 100 to replace my 120 stem, and MAN what a difference... 10x more comfortable now. My bike shop just gave it to me for free, too.

6'1" + 58 bike + -20 stem = perfect for me. I would say my leg, to torso, to arm length is right about average all around.
Cpt.America is offline  
Reply
Old 09-13-11 | 09:34 PM
  #15  
todayilearned's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
Originally Posted by Lexi01
Depending on how long you've been riding a road bike you might find you'll want to put the longer stem back on at some point...so don't put it on eBay yet.
Originally Posted by thirdgenbird
agreed. im the same height as you and also have a 58mm scattante (but a different model). when i first built it up i used a 100mm stem. now i am using a 120mm.
Yeah, I thought about that. One of the reasons I was pushing for a new stem anyway was because the original 120mm stem is made out of some alloy. The site doesn't specify and it looks ****ty quality to begin with. Maybe in the future I'll jump up to 100 or 110 but doubt I'd ever fit a 120.

Originally Posted by trussdude
I have a 2005 Scattante CFR in size 58.

I am 6'-1" with long arms.

I changed the 120mm stem to a 100mm and it was much better.
Originally Posted by Cpt.America
It's funny you posted this! I am 6'1", a bit big for a 56, so I am on a 58. But when my seat is set at just the right spot, I felt like I was reaching JUST a tad... So my local bike shop gave me a 100 to replace my 120 stem, and MAN what a difference... 10x more comfortable now. My bike shop just gave it to me for free, too.

6'1" + 58 bike + -20 stem = perfect for me. I would say my leg, to torso, to arm length is right about average all around.
I have a feeling these bikes were designed by vertically challenged people who just wanted to be a PITA.
todayilearned is offline  
Reply
Old 09-14-11 | 02:45 AM
  #16  
roadwarrior's Avatar
Senior Member
20 Anniversary
 
Joined: Oct 2002
Posts: 10,664
Likes: 7
From: Someplace trying to figure it out

Bikes: Cannondale EVO, CAAD9, Giant cross bike.

Originally Posted by AlexZ
But didn't the guys at Performance help you with size and fit?
With all due respect to the people over there, they opened a store near us. We've heard stories from people coming in to buy bikes, who had returned them and came to us to get a properly fitted bike. Anyway, I wandered in on a Friday (the store near us is next to a huge shopping center) and there were three employees in the store with zero customers. Apparently they don't really give them any tools other than eyeballing the customer to get someone set up properly. I drove by on a recent Saturday while on my way home, three cars in the lot.
It's a nice store with beautiful displays. They opened a second store in town, same deal. And it was, of course, near our second location.
Plenty of business for everyone.
roadwarrior is offline  
Reply
Old 09-14-11 | 11:12 AM
  #17  
todayilearned's Avatar
Thread Starter
Senior Member
 
Joined: Aug 2011
Posts: 462
Likes: 0
We have 2 stores here in town (they're both within 5-7 miles of eachother). The employees are very nice but their knowledge is quite limited. I asked a few of them if they ride and maybe 30% of them own a bike?

They just work with SUCH a large volume. After I picked up my bike I got locked out of my car and they let me sit inside. In the 2-3 hours I sat there I saw maybe 25 unique customers buying atleast 2-3 accessories each. The employees were ringing up the register like crazy and this was a normal day.

When I wanted to get a new stem I took it to my LBS and they were so much more laid back. They weren't pushy trying to sell me anything and really knew their stuff.

If I'm still cycling in 1 year I'm probably going back to buy a bike from them just because they were so helpful.
todayilearned is offline  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nivalu
Fitting Your Bike
27
07-27-19 01:39 PM
davei1980
Fitting Your Bike
32
12-30-17 03:56 PM
topslop1
Road Cycling
31
02-29-16 07:04 PM
Bkbiker
Bicycle Mechanics
5
07-21-14 05:07 PM
Reloder28
Commuting
13
05-15-11 07:06 AM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.