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Here are a couple of photos. Doesn't help that the parts are black... The mount is for 160mm REAR caliper installation. This is the one I am using, but they are very inexpensive on Amazon...

I put disc brakes on my Sofrider a few years ago. I made an adapter for rear discs, and have used several different caliper brands on it. The TRPs will mount exactly the same way the Avids mount (and Tektros, for that matter. I have TRP Hy/Rd calipers on my Silvio 2.0) They are post mount...

Pictured is a T50 with 1x11 speed 11-50 Sunrace cassette and Wolftooth hanger extender. The derailleur and shifter are Shimano M8000 parts. The chainring is a Quest 42T e-ring. It shifts REALLY nicely. Although the Q45 hanger arrangement is slightly different, I don't know of any reason the...

Thanks very much for all of your comments and observations. It's helpful to hear from "the folks that own one". The wheels I'm using arrived today, so I'll be buying tires this week. When I get everything together, I'll post (with pictures, otherwise it didn't happen!) Thanks and best, Doug

Hi folks, Happy new year! Looking to the brain trust for 700x25C tire recommendations. It's been a while since I've bought 700c tires. The forum search function didn't turn up much, at least the way I searched. My Silvio 1.0 is still wearing the Vittorio Corsa CXs I put on it many years...

Hi Marie, My condolences on your father's passing. He obviously put a great deal of thought and care into the bike's construction, as it has a fork he either made himself or had made specially for this bike, and there are other interesting parts on it. He did a splendid job. It's hard to put...

Woodguy, I ran into the same rib spacing problem on my development bike, and solved it the same way, but with an aluminum piece... I am using the old Sofrider wire mount for the upper support.

Outstanding video! Your technique is really smooth, your bike is really nicely set up. the weather seemed to be perfect, and there were lots of nice folks. How could it get any better? Nice job. Looking forward to seeing more. Hopefully, the current unpleasantness will be behind us in time for...

Thanks, Big G. This was something I first thought about in 2006, but never had time to pursue until I retired. All up as pictured, it weighs 28 lbs. I'm trying to figure out a proper fork so I can put disc brakes on it. Overall, your T50 makes much more sense. I may have to try your mod on my...

Very, very nice engineering! I like yours better than mine. Your pivot clamp solution is very elegant.

This might seem silly, but look at the slipping tubes and verify that the outermost tube has a contraction slot cut into it. This is necessary to allow the tube to tighten (reduce in diameter) when the clamp is pulled up tight. It could have been overlooked when the tube was manufactured, or...

I bought a Ventisit seat pad from Cruzbike for my T50. You'll want the "All Other Models" version. Same seat as the Freerider, so it should fit fine...

TANSTAAFL

In some cases, folks offset the clamps to the left to give clearance to run a triple crank. Yours appears to be a double, though...

This can come from the pivot clamp. It's hard to locate because the sound travels along the frame and is amplified by the tubes. Back out the pivot clamp bolts and grease the pivot axle and the contact points between the clamp and the yoke for the adjustable front tube. Also, verify that the...

This was my Quest 1.0 when I was doing drivetrain research. I used a 54-44-24 triple with an 11-25 cassette to help figure out what I wanted. Didn't work very well; I was always shifting the front derailleur. But the drivetrain will take a lot of variations and still work. I had to use a...

The direct ancestor of the QX100, Quest 1.0 was delivered with a 3-chainring crank. If you were tall enough where the chainstay angle didn't become too open when setting your x-seam, this worked fine. Judging by your profile picture, you should be fine where you have the front tube currently...

This was probably the ultimate expression of the Silvio V1 design set. The curved slider and revised front derailleur mounting made a lot of things work much better. A Silvio 2.0 fork should fit, which would give you disc brake lugs (if you can find such a fork), but the rears, if you want disc...

Pics... if they load...

Sigma. "Dangerbike". The kid that didn't fit in. The red-headed (framed) stepchild. I've had one of these in a box in my garage, un-assembled, for about 12 years now. When I was asked by Jim and Maria to pre-assemble about 13 of them, this one was the "runt of the litter". When another one had...