Remember awhile back when I converted my EighthInch Scrambler V2 frame from a singlespeed to a 2-speed? Well, I decided I still wasn’t done with it.
When I was in the middle of the conversion, I discovered another guy who converted his Scrambler V2, as well, only he basically did the opposite: he stuck with a single chainring, but scrammed a 10sp cassette in the rear.
I figured, since I already had the rear shifter (it came with the front as a set, and I never sold it like I’d planned to), all I really needed was a rear derailer and a wheel with a proper road hub. Well, that, plus I needed to widen the rear triangle to fit a 130mm hub. Using a combination of the homemade frame spreader tool (see previous post), along with Sheldon Brown’s 2×4 method, I was able to cold set the frame to 126mm, up from 120mm. I’m now able to squeeze in a road hub, or add a couple 2mm spacers to either side of my SS hub, and go either direction.
As usual, I wanted to do it right, so I bought a second STI cable stop for the downtube, and a regular cable stop for the chainstay, drilled 1/8" holes in the frame, and riveted them on.
I’m happy to say it all worked out as planned. The one thing I’d been worried about was the tight clearance between the small chainring and the chainstay, which was already just 3mm before I widened it. However, after I was finished, it still remained more or less the same, so no worries there. I swapped the Paul Components Melvin chain tensioner for a used SRAM Force rear derailer I found on eBay, re-using the DMR chain tug with it’s built-in derailer hanger.
With it complete, I can run just about any combo of gears I want: singlespeed, 2-speed, fixed, or 2×10. I also have the option of running skinny road tires, or cramming in my Kenda 32c knobby cyclocross tires. The cassette is a 12-28, to make off-road climbing a little easier while staying seated.