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  1. Doug Burton

    Sofrider frame and weight

    Hi Karl, I have read all sorts of amazing things about bike weight. The two differing weights you measured are typical of the measurement error you'll encounter when folks quote bike weight. Some weigh with pedals, some without . I've even seen where 2 bikes weigh the same, and one is...
  2. Doug Burton

    IGH on a Silvio?

    These are the issues you face with an IGH on a SIlvio: 1. The fork dropout spacing on these forks runs tight, 128mm. They easily spread to 130mm, but it's pretty stiff going any wider. The nominal design OLD distance of the ones I've looked at is 135mm. This will also push the ends of the...
  3. Doug Burton

    Which sofrider?

    As Gromit discreetly reminded me, we are also offering the Sofrider V2.2 as an 8-speed bike. I have been sufficiently immersed in Quest (suitcase packing instructions and assembly manual) that I completely forgot about the 8S V2.2. That bike is a bargain. Previous advice from all posters...
  4. Doug Burton

    Which sofrider?

    Hi, The V2 Sofrider is offered with a 16 speed drivetrain. There may be some V1 8-speed Sofriders available. The V2 was improved in many ways, not just by adding a front derailleur and a double crankset. I don't know if you've seen this: http://www.cruzbike.com/SofriderV2-DougBurton.pdf or...
  5. Doug Burton

    Brief Update

    I've been priveledged to have some input on this design (I have one of the two first prototype frames here), and when you see it, it will knock your socks off! John spent huge time and resources creating the Silvio, and it really shows when you try to "compete" with it in developing a new...
  6. Doug Burton

    Xootr Swift folding bike as donor bike ???

    The V1 top tube height is nominally 25"; The V2 is an inch lower at 24". Depending on how the rear shock preload is set and the tires used, these dimensions can vary a little. Best, Doug
  7. Doug Burton

    front disc brakes - possible?

    The adapter brackets have to move the dropout spacing from 100mm to 135mm to allow the rear hub and cassette to attach to the fork, after it's turned around backwards. The fork legs will occupy the area the brake disc would need to run in. The only way I know of to put disc brakes on the front...
  8. Doug Burton

    New stem and seat recline

    Hi Trev, The bike looks great. Looking forward to more ride reports. I'm a little concerned about the fact that the post clamp isn't completely seated on the seat post (judging by the picture that shows the clamping section of the clamp at an agle to the post.) Shouldn't be a problem if it's...
  9. Doug Burton

    building a bike around an older kit

    Hey KB, 31 lbs. is great, especially if you can get that with the forgiving rugged nature of steel. I'll be interested in where your next effort weighs in. But this bike looks like a great all-around 'bent. Best, Doug
  10. Doug Burton

    new 700c conversion

    Wow, I really like it! Very elegant-looking; the red fork is a nice visual touch. Gobs of suspension travel! Where'd you source the fork from? Looking forward to a ride report, keep us posted! Best, Doug
  11. Doug Burton

    building a bike around an older kit

    Wow, she's a looker! There's a trick you can do with the Cyclestar mirror if you want to get it away from the bar end - Take the little intermediate swivel link and arm off, and push the mirror directly on to the strap - It can tuck in just inboard of your shifter and be angled out of the...
  12. Doug Burton

    700c fork suggestions wanted

    I took a chance and ordered a set of Continental Sport Contact tires in 700 x 37c for the 29'r. They fit fine and work really well. The trick is, for installing the wheels, you have to deflate the tire to get it between the dropout and the "brake bridge" on the swing arm, and the chainstay...
  13. Doug Burton

    Knee pain

    I'm getting old, but stretching isn't helping. I'm still only 5'6". Maybe I'm stretching the wrong stuff. :lol:
  14. Doug Burton

    best of breed Bike Repair Stand

    Hi Bob, "unfinished ongoing thingy" is a reasonable technical description. Given the local traffic patterns, I figured if it ever left the cul-de-sac it would be a death trap around here Actually, I think the ultimate stand will hold your Avalon just fine, and there are workarounds for the...
  15. Doug Burton

    power assist is definately a reasonable subclass

    Hey Bill, Is that a "Cruzvair"? After all, it is "rear engined"... Good stuff. Best, Doug
  16. Doug Burton

    best of breed Bike Repair Stand

    I have one of these, except they were yellow when I bought mine. It works very well for the Silvio, Sigma and Quest; it's a little tricky for the Sofrider and Freerider. I drilled a through-hole further down the center tube and relocated the clamp assembly about a foot farther down, so I can...
  17. Doug Burton

    My First Real Sofrider Ride

    A reasonable way to mount the front fender stays is to use "p Clamps" you can usually find at the hardware store. Gaerlan cycles sells them here: http://www.gaerlan.com/bikeparts/acc/fender/fender.html RACKCLAMP--$4.95 Best, Doug
  18. Doug Burton

    Short Cranks

    I have traditionally not been a short crank guy, after trying 155mm on my old Rotator Tiger. I found my cadence to be uncomfortably high ("movin' meat instead of pushin' feet"). My Silvio and Sofrider both use 170mm cranks, as did my red bike. But the Quest 559 (155mm cranks) was a revelation...
  19. Doug Burton

    The final finishing touch

    Hi CS, The Raleigh Trekking bar is very similar to what we use on the Sofrider and Quest, only a bit wider, which isn't a bad thing for conversion bikes. The rise is also a little shallower, which means you won't get quite and much knee relief, but it's close. I have a pair of bars very much...
  20. Doug Burton

    Silvio For Sale

    Hi Roadrunner, Sorry to hear of your injuries. Hope you recover fully and soon. Have you posted it to BROL? All the discussion over there generates a lot of attention for used Silvios. Good luck, Doug
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