Advertise on Bikeforums.net



User Tag List

Results 1 to 13 of 13
  1. #1
    Senior Member rdtompki's Avatar
    Join Date
    Nov 2008
    Location
    Hollister, CA
    My Bikes
    Volagi, daVinci Joint Venture
    Posts
    3,944
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Maiden "voyage" tomorrow

    My wife is out of town so I thought I would try adding a supercharger to the tandem. My 34 y/o son is a pretty strong cyclist, but never been on a tandem so we're meeting tomorrow am to go on a 61 mile club ride. I had bought a 410mm Thomson seatpost for just such a possibility. I've got all of 1500 miles under my belt so any good thoughts would be appreciated. As long as we're upright we ought to be going pretty fast Gonna put a bit of extra air in the old tires (He's 190+).
    Rick T
    --------
    Volagi - Triple"ized" and Tubeless
    daVinci Joint Venture

  2. #2
    Senior Member VaultGuru's Avatar
    Join Date
    Aug 2004
    Location
    Fair Oaks,CA
    My Bikes
    Kestrel RT1000 & Calfee Tandem
    Posts
    719
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Better look way out ahead. You will be going by everyone else like a rocket. Give them a lot of space. Can't wait to hear about how big your smile is

  3. #3
    Senior Member WebsterBikeMan's Avatar
    Join Date
    Jun 2008
    Location
    Just outside Kitchener, Ontario
    My Bikes
    Nishiki Continental, Bilenky custom travel tinker, home built winter bike based on Nashbar cross frrame
    Posts
    622
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    1500 miles experience should be enough. We - the four in our family - went touring this summer. I started out with about as much experience as you have now. When my son and I did side trips, did we move... he's only 22, six and a half feet, probably about 190 pounds.

  4. #4
    Senior Member
    Join Date
    Nov 2006
    Posts
    787
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    With two strong guys you might be out of sync and fight each other and the bike will squirm.
    Try to go with the flow to maximize your power.

  5. #5
    Senior Member rdtompki's Avatar
    Join Date
    Nov 2008
    Location
    Hollister, CA
    My Bikes
    Volagi, daVinci Joint Venture
    Posts
    3,944
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The ride went fine. My son had ridden 90 miles the day before and somewhat depleted his motor, but we did 70 miles at a reasonable pace. The really strange thing is that he never bothered to sync up on our Davinci and for the most part I couldn't tell the difference; must be something about his having a very good pedal stroke. He's obviously much more powerful than my wife and yet I can feel in an instant when she is out of sync. I think our ride is good testament to the torsional stiffness of the Davinci frame - this is a large/small frame, but I used a 410mm seatpost on the rear. Felt no whip at all.

    BTW - had 3 flats in 15 minutes at one point.
    Rick T
    --------
    Volagi - Triple"ized" and Tubeless
    daVinci Joint Venture

  6. #6
    Oldie, just not here! Onegun's Avatar
    Join Date
    Apr 2008
    Location
    Shady Hills, Fl.
    My Bikes
    2005 Trek T2000 tandem, 2003 Burly Tosa Tandem, 6 singles including 2 fixies
    Posts
    982
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by rdtompki View Post
    BTW - had 3 flats in 15 minutes at one point.
    Not to hijack your thread, but sounds like "flat resistant" tires are called for unless these were the "snake eyes" punctures of pinch flats. The front runners appear to be Conti Gatorskins, Bontrager Hardcase and Specialized Armadillos (in no particular order).
    BICYCLE - [bahy-si-kuhl] - Noun :> A medical device used to correct the common geriatric condition of OFS, (Old, Fat & Slow), in a manner that does not induce brain-decaying boredom like walking or running.

    2005 Trek T2000 Tandem, 2003 Burley Tosa Tandem, Pacific Dualie beater tandem, and 6 singles including 2 fixies.

    TampaBayCycling.com - A LOCAL Cycling Forum
    The Florida Panthers Tandem Club

  7. #7
    Senior Member
    Join Date
    Dec 2005
    Location
    Brighton, UK
    My Bikes
    Rocky Mountain Solo, Specialised Sirrus Triple (quick road tourer), Santana Arriva Tandem
    Posts
    1,546
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sounds like a great ride!

    28 cm Bontrager Hardcases on our Santana - on the 2nd pair now, no punctures so far

    (Having stated this, I fully expect lots of popping pretty soon!)

  8. #8
    Senior Member rdtompki's Avatar
    Join Date
    Nov 2008
    Location
    Hollister, CA
    My Bikes
    Volagi, daVinci Joint Venture
    Posts
    3,944
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm running Conti GP 4 Seasons. One of the flats was a small thorn, the source of the others is unknown (not a pinch flat). This is a heavily traveled road with a lot of small debris on the shoulder. My wife and I average about one flat per 100 miles - thron here, piece of glass there, etc.
    Rick T
    --------
    Volagi - Triple"ized" and Tubeless
    daVinci Joint Venture

  9. #9
    Oldie, just not here! Onegun's Avatar
    Join Date
    Apr 2008
    Location
    Shady Hills, Fl.
    My Bikes
    2005 Trek T2000 tandem, 2003 Burly Tosa Tandem, 6 singles including 2 fixies
    Posts
    982
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by rdtompki View Post
    My wife and I average about one flat per 100 miles - thorn here, piece of glass there, etc.
    My wife and I used to do a little better, averaging one every 200 or so miles. We also used to have those days occasionally with multiple flats in the same ride.

    Since changing to "flat resistant" tires, however, I'm truly surprised when we get a flat! Flats are not even on the radar anymore ..... have long since lost track ..... MAYBE one every 1500 to 2000 miles?
    BICYCLE - [bahy-si-kuhl] - Noun :> A medical device used to correct the common geriatric condition of OFS, (Old, Fat & Slow), in a manner that does not induce brain-decaying boredom like walking or running.

    2005 Trek T2000 Tandem, 2003 Burley Tosa Tandem, Pacific Dualie beater tandem, and 6 singles including 2 fixies.

    TampaBayCycling.com - A LOCAL Cycling Forum
    The Florida Panthers Tandem Club

  10. #10
    Senior Member
    Join Date
    May 2008
    Posts
    378
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    RDT & Son overtook my wife and I while we were out riding in the same area yesterday, at 60 miles into thier ride they looked plenty strong. Maybe changing flats was chance to recharge?

    We run the conti GP 4's also and have only had a few flats while riding in the San Jose area did have 8 or 9 flats in New Zealand though.

  11. #11
    Tandem Vincitur Ritterview's Avatar
    Join Date
    Sep 2005
    Location
    Northern California
    My Bikes
    BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.
    Posts
    3,226
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by rdtompki View Post
    I'm running Conti GP 4 Seasons. One of the flats was a small thorn.
    Goatheads! (Tribulus terrestris) The bane of cyclists. Conti GP 4 Seasons are no match for these, I don't even think Gatorskins or even Armadillo's can withstand their malevolence.



    It is helpful to be able to identify this noxious weed, and steer clear of it.


  12. #12
    Senior Member rdtompki's Avatar
    Join Date
    Nov 2008
    Location
    Hollister, CA
    My Bikes
    Volagi, daVinci Joint Venture
    Posts
    3,944
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    One of my barn carts has foam-filled tires just to counter that evil weed. These darn things will grow in the cracks along the shoulder of the road and deposit their evil seed.

    George, that was only a show. My son, unbeknownst to me, had ridden 90 miles the day before. Next time I'm wanting a rested stoker which is what I paid for when I housed and fed he and his brother for 19 years. You and your wife are very smooth on the tandem and it's impressive to see the stoker stand at a higher cadence.
    Rick T
    --------
    Volagi - Triple"ized" and Tubeless
    daVinci Joint Venture

  13. #13
    Senior Member
    Join Date
    Apr 2009
    Posts
    121
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I once had a buddy of mine stoking for a decent length ride. My wife is much younger than him, but he was a stronger rider. It was a bunch of fun.

Posting Permissions

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