Advertise on Bikeforums.net



User Tag List

Results 1 to 14 of 14
  1. #1
    Senior Member Steve Sawyer's Avatar
    Join Date
    Jan 2013
    Location
    Livonia, MI (suburban Detroit)
    My Bikes
    2013 Specialized Seceur Elite
    Posts
    505
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Looking for drive train suggestions

    I picked up a Trek Navigator hybrid a couple of years ago. My only complaint has been the wide low-pressure tires and the drive train. I replaced the tires with skinnier 80-lb tires that has worked out nicely, but the drive train is still an issue.

    The LBS where I bought it couldn't quite get the derailleurs adjusted to a) run quietly/smoothly or b) keep the chain from slipping off a cog so as to lose motive power entirely. My solution was to have the shop adjust the front derailleur to only use the two larger chain rings, as I seldom used the smallest of the three, so I'm now riding a 14-speed instead of a 21-speed bike.
    It's my assumption (based on nothing objective) that cheaper bikes (I think this bike went for about $425 or so) cut corners on the components, so I'm wondering if I couldn't spring for a better set of drive train components that I might be happier with. The current gear ratio is also a little low, causing me to "run out of gears" occasionally when running downhill.

    I was kinda looking at the Shimano Alfine 11-speed hub, but the reviews seem to be sufficiently mixed that I'm not that enthusiastic about dropping that kind of cash on something that may not be reliable or perform significantly better than something more conventional.

    I'm pretty much a warm-weather, paved surface rider, and like to go moderately long distances - never less than 12 miles, and I really like rides of 20 miles and up (hope to get a metric century under my belt this year).

    Open to suggestions on what options I should consider.

    Thanks!

  2. #2
    Senior Member
    Join Date
    Feb 2009
    Posts
    4,146
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    A hybrid positions a rider more upright so they catch more wind for resistance. You either need a more aero position or a bigger engine.

  3. #3
    Senior Member
    Join Date
    Oct 2009
    Location
    England, currently dividing my time between university in Guildford and home just outside Reading
    My Bikes
    Too many to list here!
    Posts
    1,896
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by davidad View Post
    A hybrid positions a rider more upright so they catch more wind for resistance. You either need a more aero position or a bigger engine.
    Or to find a shop that can set up the triple crankset properly....

  4. #4
    Senior Member Steve Sawyer's Avatar
    Join Date
    Jan 2013
    Location
    Livonia, MI (suburban Detroit)
    My Bikes
    2013 Specialized Seceur Elite
    Posts
    505
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by davidad View Post
    You either need a more aero position or a bigger engine.
    Hmmm....

    Kinda confused here. Not sure how less drag (or more powerful pedaling) will make the drive train smoother, or give me a larger chainring (or a smaller sprocket) to increase my top speed...

  5. #5
    coprolite fietsbob's Avatar
    Join Date
    Jun 2010
    Location
    NW,Oregon Coast
    My Bikes
    7
    Posts
    3,207
    Mentioned
    47 Post(s)
    Tagged
    0 Thread(s)
    There is that ^^^ . you will not be as fast , just because you are sitting up higher ..
    with the summer day being longer, a 60 ish mile day is reasonable, just start earlier ..

    I did many on my camping bike tours , and I only average 7~10 Mph.

    Maybe a Sram Dual Drive , the triple crank is inside the hub , and the cassette is on the outside.

    and the Internal 3 speed downshifts when nearly stopped , which a front derailleur struggles to do.

  6. #6
    Senior Member Steve Sawyer's Avatar
    Join Date
    Jan 2013
    Location
    Livonia, MI (suburban Detroit)
    My Bikes
    2013 Specialized Seceur Elite
    Posts
    505
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Airburst View Post
    Or to find a shop that can set up the triple crankset properly....
    I kinda wondered if it was a problem with the components, or the mechanic adjusting it. Like I said, I suspect the quality of the components - maybe I should suspect the competence of the mechanic??

  7. #7
    Senior Member
    Join Date
    Dec 2010
    Location
    Above ground, Walnut Creek, Ca
    My Bikes
    7 single speed road
    Posts
    4,384
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    a competent bicycle mechanic should be able to fix your drivetrain concerns. shop around a little, maybe check the regional forums (the "Great Lakes" section) and ask about top quality bike shops in your area.
    Last edited by hueyhoolihan; 01-10-13 at 08:14 PM.

  8. #8
    Senior Member Steve Sawyer's Avatar
    Join Date
    Jan 2013
    Location
    Livonia, MI (suburban Detroit)
    My Bikes
    2013 Specialized Seceur Elite
    Posts
    505
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by fietsbob View Post
    you will not be as fast , just because you are sitting up higher ..
    with the summer day being longer, a 60 ish mile day is reasonable, just start earlier ..
    Well, I can usually average a good 15-16 MPH on level ground, 13-14 MPH if you throw in some hills (both up-and-down ) or some headwinds.

    Quote Originally Posted by fietsbob View Post
    Maybe a Sram Dual Drive , the triple crank is inside the hub , and the cassette is on the outside
    Interesting - I wasn't aware of those. That might be an alternative, but as I posted above, I'm wondering if maybe the componentry is ok, just not adjusted properly.

  9. #9
    Senior Member Steve Sawyer's Avatar
    Join Date
    Jan 2013
    Location
    Livonia, MI (suburban Detroit)
    My Bikes
    2013 Specialized Seceur Elite
    Posts
    505
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by hueyhoolihan View Post
    maybe check the regional forums (the "midwest" section) and ask about top quality bike shops in your area.
    Good suggestion. I'm new 'round here, so I'm still learning all the resources available.

  10. #10
    we be rollin' hybridbkrdr's Avatar
    Join Date
    Oct 2009
    Location
    Quebec, Canada
    Posts
    1,517
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    According to Bikepedia, the Trek Navigator has grip shifters. Maybe you could use an Acera front derailleur? http://www.niagaracycle.com/product_...oducts_id=6288 and new shifters? Falcon friction shifters http://www.niagaracycle.com/product_...ucts_id=418214 or Shimano Acera 7 speed shifters http://www.ebay.ca/itm/524122-New-Sh...1#ht_500wt_665
    Feeling Good by David Burns

  11. #11
    Domestic Domestique UnsafeAlpine's Avatar
    Join Date
    Dec 2007
    Location
    Michigan
    My Bikes
    Brand New Old Catamount! Schwinn Homegrown, Specialized FSR, Salsa Vaya, Salsa Chile Con Crosso
    Posts
    1,744
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    There are a bunch of good shops in your area. The bike really isn't worth a new drivetrain and the labor to replace it all. For what you'd like to do, you may be better off with a more appropriate bike. PM me and I can give you the name of my shop if you'd like to try another shop.

  12. #12
    Senior Member Steve Sawyer's Avatar
    Join Date
    Jan 2013
    Location
    Livonia, MI (suburban Detroit)
    My Bikes
    2013 Specialized Seceur Elite
    Posts
    505
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by hybridbkrdr View Post
    According to Bikepedia, the Trek Navigator has grip shifters. Maybe you could use an Acera front derailleur?...and new shifters? Falcon friction shifters...or Shimano Acera 7shifters
    Man, I really don't know. I'm realizing just how ignorant I am!

  13. #13
    Constant tinkerer FastJake's Avatar
    Join Date
    May 2010
    Location
    Madison, Wisconsin
    Posts
    6,121
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Even many crappy department store bikes can be made to shift properly. Certainly your Trek Navigator should be unless something is broken.

    Either way, any halfway competent mechanic should be able to sort it out. Get a new mechanic.
    Why "derailer" is the correct way to spell the gear-change mechanism: sheldonbrown.com/derailer.html

  14. #14
    we be rollin' hybridbkrdr's Avatar
    Join Date
    Oct 2009
    Location
    Quebec, Canada
    Posts
    1,517
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Steve Sawyer View Post
    Man, I really don't know. I'm realizing just how ignorant I am!
    I disagree with people saying some bikes are too cheap to fix, just replace. If the bike is comfortable for you, I think it may very be worth it to upgrade some parts. The Shimano quality levels...
    Tourney
    Altus
    Acera
    Alivio
    Deore
    and other levels or Deore

    I linked you to both Falcon friction shifters which gives you the "old style" shift by ear kind of shifting. With this, you won't have to go to a bike shop every day. The other are rapidfire Acera shifters. You just push a button to change gears. I linked you the highest quality you'd have in 7 gears (unless you can find really old Deore DX or whatever). If you changed both front derailleur and shifter to Acera and it still won't shift right, then I'd suspect the crankset. Or, like people say here, the mechanic. Actually, I don't know what kind of frame you have so that's why I didn't link you to an Acera rear derailleur.
    Feeling Good by David Burns

Posting Permissions

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