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Want to change my ss mtb to fixed (mostly road use), some ??(5 posts)

Want to change my ss mtb to fixed (mostly road use), some ??hrv
Nov 19, 2003 11:01 AM
OK, so I've done the geared to ss conversion, and have been riding that and have a good feel for what gears work for me. Ready to take the next step (just biding time 'til the Langster comes in - if at all) and go fixed. Any difference between the Van Dessel or Kogswell 135mm hubs? Same basic price. Tried to find a pre-built 26" fixed/free wheel, no such luck. Using an early 90's Cannondale mtb.

Options are get the hubs, use current rims and have shop build the wheels, or get a basic wheelbuilding stand and do it myself, but I don't know if I have the time, plus I've never done it. Shop really not experienced in fixed gear stuff.

What are some things I have to keep in mind to make it work?
Dropouts are 135mm spaced, horizontal 'enough' to not have to use a tensioner. Also, I'm using the middle ring position; haven't measured chainline yet, should I before purchasing? Anything else I've forgotten?

Thanks,
hrv
Surly has a hub that will work too...Nater
Nov 19, 2003 12:31 PM
that is 135mm fixed/free flip flop. Your LBS should be able to build you a SS/fixed dishless rear wheel even if they don't have any experience with fixed gear stuff. The wheel build will essentially be like any other front wheel that they've built (equal length spokes on each side of the wheel).

I'm not sure about the chainline of the other hubs that you mention, but Surly SS hubs are designed with a 52mm chainline...run the single ring on the outer position (big ring) of the crankset and the normal BB spindle length for the crankset that your're using. The chainline information of the Van Dessel and Kogswell hubs should be available from the manufacturer. If it's 46.5mm, use the middle ring position with the shorter of the two BB spindle lengths for the crankset, if it's 50.0mm use the middle ring position with the longer of the BB spindle lengths, and 52mm should be the outer position with the shorter BB.

Good luck...I'm building a rear wheel for my Surly Cross-check with that Surly hub this Saturday so I'll be fixed by next Monday's commute!
More info from Sheldon BrownNater
Nov 19, 2003 12:37 PM
He says that both the Van Dessel and Kogswell hubs give a 52mm chainline for the 135mm hub. Try the BB you have now with the ring in the outer position.
Another optionKEN2
Nov 19, 2003 1:18 PM
Your LBS can have Quality Bicycle Products, likely their main supplier as they are for most LBS in the country, build you a wheel from their "custom wheel house." The LBS can access it through their website (you have to have a shop ID to log in) and you can choose hub, rim, spokes, cross pattern, etc. from a large list including the Surly fixed/free hub. That's what I have, QBP built it and their wheelbuilders do excellent work!
Thanks all. Actually, now I'm leaning towards the Fixxer. (nm)hrv
Nov 19, 2003 3:30 PM