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Hi there,
I wonder if somebody can offer some advice, I'm putting together my first single-speed and recently picked up a used but clean Dura-Ace FC-7400 set of cranks + bottom bracket (but with no chain rings), the cranks are 165mm and 130BCD.I don't think these are track cranks but were designed more for road use, despite that would these still be useable for a single speed? I'm guessing I'd need smaller bolts for the chainring and a 3/32" chain?
Or is it worth waiting/saving up for the track equivalent crankset (FC-7600)?
Any advice welcome :)
Aaron
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Hi all,
if anybody has a Bob Jackson Vigorelli 57cm (22.5") centre to top frameset for sale, do let me know. Looking for a well looked after example if possible.Cheers,
Aaron
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Hi,
I've got a 56cm 531 Mercian track frame project ('77 I think), and want to find a suitable 1" threaded track fork for it. If possible a matching 531 fork would be good, but it you have something that might work please drop me a line!Cheers,
Aaron -
Got a response from a Bob Jackson they told me to take my inside leg measurement and minus 11". So that puts me on a 22.5" (57cm) frame. Interestingly though I was speaking to Mercian and they said they'd put me on a smaller track frame than my road size.
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Thanks guys, good advice. I will consider the 853 as recommended also, seems like a good way to prevent minor dents. I have managed to stand-over a 56cm Mercian track frame and that measured 82.3cm stand-over height, which seemed comfortable to me. From what I can gather on-line 57cm track frame sizes seem to be about a cm or so higher typically, but that's getting a bit too close to the family jewels...about 0.5" clearance give or take...based on a similar frame (came in at 83.5cm). Probably manageable though either at 56cm or 57cm, although I'm favouring the former size.
Thanks for the great information, interested to hear how you get on with your DA road crankset build. The 7400 are lovely looking cranks, I just wish the track version would be cheaper.
The frame I'm using is a well worn Mercian vincitore by the looks of it, but it is equipped with dual brakes bosses, mud-guard eyes, front fork light attachment(?) and cable run eyes. Unusual beastie but perfect for a commuter single-speed/fixie, as it has the track style drop outs. The plan would be to use a flip flop wheelset, but I don't know if that would impact fine tuning of the chain line if combined with the road crankset (would definitely have to fiddle with the chainring bolts). Might be easier to just seek a cheap track crankset.