Advertise on Bikeforums.net



User Tag List

Results 1 to 25 of 25
  1. #1
    Senior Member s4one's Avatar
    Join Date
    Aug 2007
    Posts
    1,331
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    110mm vs 100mm vs 90mm stem

    My bike came with a 110mm stem but when I swapped to campy, the shifters are longer than shimano so it makes my stretch out more, just a little but makes a difference (im sure campy users can chime in).

    How much of a difference will switching from a 110 to 100 or even 90 cause?

    I thought about 100 but not 90 because I think 90 will be too short but I do not have stem experience.

    I often place my hands right before the shifters but when I get out of the saddle I feel normal on the shifters.

    BTW, my bike has a Look HSC 4 fork on it, it uses a 31.8 correct?
    Burnt slicks

  2. #2
    Burning Matches. ElJamoquio's Avatar
    Join Date
    Jan 2006
    Location
    San Jose, CA
    My Bikes
    Motobecane Le Champion SL, Cervelo P2SL
    Posts
    9,663
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Not that hard - 10 mm, just shy of 0.4". It'll be at a bit of an angle, but nothing to worry about.

    Some claim that changing your stem by 20 mm makes a large difference in steering/handling, but I've never found any large effect either through geometry (math) or practical experience.
    Reacting is mind candy; it requires no thought. Thinking is tedious.

    Bikeforums 'Group Buy': Kinlin Rims, Sapim/DT Spokes, Formula/Bitex Hubs


    "The only good race pace is suicide pace, and today looks like a good day to die."
    -Steve Prefontaine

  3. #3
    Senior Member s4one's Avatar
    Join Date
    Aug 2007
    Posts
    1,331
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ElJamoquio View Post
    Not that hard - 10 mm, just shy of 0.4". It'll be at a bit of an angle, but nothing to worry about.

    Some claim that changing your stem by 20 mm makes a large difference in steering/handling, but I've never found any large effect either through geometry (math) or practical experience.
    Are you saying that it will be fine if I swapped for a shorter 100mm stem and 10mm would provide sufficient difference?
    Burnt slicks

  4. #4
    Senior Member Ramjm_2000's Avatar
    Join Date
    Dec 2005
    Location
    Anywhere the government sends me...
    My Bikes
    Too many...
    Posts
    926
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    While I can't help you with your shimano to campy question (all campy here), you can always look into a handle bar with a shorter reach and or a shorter stem. I use the new FSA shallow drops on my Lynskey L3 and on my 555. I can't remember what size your 555 is but it has been quite the challenge getting my 555's fit to match my Lynskey. B/c of the STA I ended up with a 20mm setback post and a 105 length stem vs. a 25mm post and a 110mm stem on my Lynskey. Had I gone with a small I'd have probably could have used a 25-30mm setback post with my normal 110 stem. I would have had more spacers than I prefer but than again I'd have more seatpost showing (have about 7" now). Just curious what size frame did you go with and what's your cycling inseem/height?

  5. #5
    Burning Matches. ElJamoquio's Avatar
    Join Date
    Jan 2006
    Location
    San Jose, CA
    My Bikes
    Motobecane Le Champion SL, Cervelo P2SL
    Posts
    9,663
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by s4one View Post
    Are you saying that it will be fine if I swapped for a shorter 100mm stem and 10mm would provide sufficient difference?
    I can't answer that for you. 20 mm is a rather large difference, 10 is obviously only half as much. If you aren't sure, guess, and go online and get the cheapest stem you can find. You should get one for $20.
    Reacting is mind candy; it requires no thought. Thinking is tedious.

    Bikeforums 'Group Buy': Kinlin Rims, Sapim/DT Spokes, Formula/Bitex Hubs


    "The only good race pace is suicide pace, and today looks like a good day to die."
    -Steve Prefontaine

  6. #6
    Senior Member s4one's Avatar
    Join Date
    Aug 2007
    Posts
    1,331
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Ramjm_2000 View Post
    While I can't help you with your shimano to campy question (all campy here), you can always look into a handle bar with a shorter reach and or a shorter stem. I use the new FSA shallow drops on my Lynskey L3 and on my 555. I can't remember what size your 555 is but it has been quite the challenge getting my 555's fit to match my Lynskey. B/c of the STA I ended up with a 20mm setback post and a 105 length stem vs. a 25mm post and a 110mm stem on my Lynskey. Had I gone with a small I'd have probably could have used a 25-30mm setback post with my normal 110 stem. I would have had more spacers than I prefer but than again I'd have more seatpost showing (have about 7" now). Just curious what size frame did you go with and what's your cycling inseem/height?
    I ride a 55cm Look, 31 to 32in inseem, 5'11 to 6ft tall, I have long arms for my body. When I got my bike professionally fitted, the fitter said that I am fine with the setup and if anything I can swap to a FSA shallow drop handle bar but that means that I will have to rewrap my bars, buy a shallow drop, etc. It will be easier just to swap the stem.

    I have to say that when I ride my bike with the 110mm stem, it does not cause pain or any issues. For sure, I do not want to change anything and have a problem occur.
    Burnt slicks

  7. #7
    Hook Em
    Join Date
    Sep 2007
    Location
    ATX
    Posts
    761
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Try to measure the difference in the reach between the campy and shimano levers. That might help some.

    This is assuming you like the previous position though...

    edit: pm me with your results, I am debating going 10mm or 20mm longer. I was also wondering how much I would feel either one...
    Quote Originally Posted by rangerdavid View Post
    some people have an amazing command of the obviious.

  8. #8
    Senior Member MrCjolsen's Avatar
    Join Date
    Nov 2004
    Location
    Davis CA
    My Bikes
    Surly Cross-Check, '85 Giant road bike (unrecogizable fixed-gear conversion
    Posts
    3,954
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It's easier to swap out stems than handlebars.

    Sliding your levers up and tilting your bars down has the effect of bringing the levers closer in.

  9. #9
    Hook Em
    Join Date
    Sep 2007
    Location
    ATX
    Posts
    761
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by MrCjolsen View Post
    It's easier to swap out stems than handlebars.

    Sliding your levers up and tilting your bars down has the effect of bringing the levers closer in.
    But you lose the position you like... That would be one of the last things I would do.
    Quote Originally Posted by rangerdavid View Post
    some people have an amazing command of the obviious.

  10. #10
    Two wheels is two wheels pelikan's Avatar
    Join Date
    Aug 2005
    Location
    Brisbane, CA
    My Bikes
    Pee Wee Herman Special
    Posts
    875
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ElJamoquio View Post
    I can't answer that for you. 20 mm is a rather large difference, 10 is obviously only half as much. If you aren't sure, guess, and go online and get the cheapest stem you can find. You should get one for $20.
    Or borrow one from a club/teammate buddy. I literally just picked up a Forte one for $20 to see the difference. If it does then maybe I'll buy a nice one. If it doesn't atleast I know. At $20 I don't feel bad biting the cost or returning it.

  11. #11
    Hook Em
    Join Date
    Sep 2007
    Location
    ATX
    Posts
    761
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by pelikan View Post
    Or borrow one from a club/teammate buddy. I literally just picked up a Forte one for $20 to see the difference. If it does then maybe I'll buy a nice one. If it doesn't atleast I know. At $20 I don't feel bad biting the cost or returning it.
    I was thinking of doing the same thing until an lbs owner told me otherwise... see other thread.
    Quote Originally Posted by rangerdavid View Post
    some people have an amazing command of the obviious.

  12. #12
    Two wheels is two wheels pelikan's Avatar
    Join Date
    Aug 2005
    Location
    Brisbane, CA
    My Bikes
    Pee Wee Herman Special
    Posts
    875
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    got link? quite a few threads from your profile

    When I buy a quality stem like the CF Ritchey one I have, I'll get it from my LBS, they may of even lent me one, but I work next door to Performance and for $20 it's was just cost/time efficient for trying it out.

  13. #13
    Senior Member s4one's Avatar
    Join Date
    Aug 2007
    Posts
    1,331
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'll see if I adjust to the setup as is.
    Burnt slicks

  14. #14
    Senior Member
    Join Date
    Apr 2007
    Posts
    132
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I had a 110 stem on my Wilier Cento and always felt like I was reaching a little too far. I hesitated putting a new stem on as I didn't think that 10mm would make that much of a difference.

    I was wrong. The 100 feels so much more natural and it made what resulted in a massive difference. I noticed no change in steering feel. 90mm stems seem to be a last resort for fitting, and generally if your frame was seriously oversized when you bought it.

    Another change that I made on the Cento was the type of handlebar. Some bars just reach further forward, and I was able to bring the brake hoods that much closer by moving from a Ritchey Logic to a Ritchey Streem.

    One more thing that you could try before switching stems is to move your seat forward a little more, too. That is the cheapest option of all these

  15. #15
    Senior Member CAAD5AL's Avatar
    Join Date
    Jan 2005
    Location
    SLC, UT
    Posts
    692
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ElJamoquio View Post
    If you aren't sure, guess, and go online and get the cheapest stem you can find. You should get one for $20.
    That's good advice - I'd take it one step further and say just buy both and figure out which you like better. I have accumulated so many stems over the years in various lengths and rises and it really helps when setting up a new ride. If you don't get too worried about weight, you can find them truly dirt cheap on ebay, and have the luxury of logging enough saddle time with them on the bike to really make a good decision. Then once you have it dialed, you can pony up for something a little swankier if it suits ya.

  16. #16
    . blickblocks's Avatar
    Join Date
    Sep 2006
    Posts
    3,862
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It's really hard to talk about stem length because it's entirely subjective to everything about you and your bike in specificity. You really need to try different stems out for yourself.

  17. #17
    Senior Member s4one's Avatar
    Join Date
    Aug 2007
    Posts
    1,331
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yea I might try out a 100mm to test it out, Thanks for the help!
    Burnt slicks

  18. #18
    Member LeftyNC's Avatar
    Join Date
    May 2006
    Posts
    27
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You might try the dreaded fleabay for a stem. I got a new 110 and a 100 Easton EA50 for $12.00 each, buy it now, delivered from a dealer "Abaxo". I say several others from other guys as well.

  19. #19
    Senior Member DigitalRJH's Avatar
    Join Date
    Jul 2005
    Location
    Greensburg, PA
    Posts
    1,203
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    They make 105's as well if you need to dial in your fit even more in that range.

  20. #20
    Senior Member
    Join Date
    Apr 2007
    Posts
    3,510
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    My LBS's all have "fit stems" which you can put on your bike while on a trainer in their shop. Ride for a while, change angle and reach. You might be surprised at how obvious the sweet spot is.

    Also, one of the LBS's (at least) has a whole rack of take off stems that they let you use for a while to test, assuming you ultimately buy one from them.

    If you're the guy who's LBS says you can't use non-Deda stems w/ Deda bars, find another shop, preferably with both of the above ways of deciding stem length and angle.

  21. #21
    Senior Member
    Join Date
    May 2005
    Posts
    6,901
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    OP you did not state what the stem angle of the original stem was? You may be able to get a shorter reach by changing to a stem with a different angle keeping the stem at the same length. Assume you were comfortable in the original position and you have enough miles to make that statement.

  22. #22
    Bike ≠ Car ≠ Ped. BarracksSi's Avatar
    Join Date
    Jul 2007
    Location
    Washington, DC
    My Bikes
    Some bikes. Hell, they're all the same, ain't they?
    Posts
    13,857
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I chose a different stem based on where my hands wanted to rest on the bars. I felt like I was reaching just a bit for the hoods, but felt natural with my hands just ahead of the forward bend, about 2 cm back from the hoods.

    I got a 2 cm shorter stem, moving the bars to meet my hands. Felt great after that.

  23. #23
    Senior Member s4one's Avatar
    Join Date
    Aug 2007
    Posts
    1,331
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    2mm shorter? Where did you find this?! AHha
    Burnt slicks

  24. #24
    Bike ≠ Car ≠ Ped. BarracksSi's Avatar
    Join Date
    Jul 2007
    Location
    Washington, DC
    My Bikes
    Some bikes. Hell, they're all the same, ain't they?
    Posts
    13,857
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Probably the same place where you saw someone say "2 mm".......

  25. #25
    Senior Member
    Join Date
    Feb 2005
    Location
    Oklahoma
    My Bikes
    Trek 5500, Colnago C-50
    Posts
    9,119
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by s4one View Post
    My bike came with a 110mm stem but when I swapped to campy, the shifters are longer than shimano
    This seems backwards to me. I have Shimano 9 and Campy 10 and the Shimano shifters have the longer reach.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •