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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 01-12-09, 11:56 PM   #1
Paulie
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Bob Jackson Vigorelli - What crank length do you use?

I have a Bob Jackson Vigorelli on order which I'll be using as a fixed gear commuter and Iím not sure what crank length to order. Iíd like to use 175mm but Iím concerned about pedal strike. (My roadbike has 175mm cranks so Iím used to them.)

Tyres will be 700 x 25 Gatorskins.

Pedals will be Crank Bros Eggbeaters.

Frame size will be 24.5Ē C-T.

Questions.
If thereís anybody out there with a BobJ Vigorelli, what crank length do you use? Do you have any issues with pedal strike?

Thanks for your help.
P
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Old 01-13-09, 01:09 AM   #2
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If you use the search function here, you will find out that BJ Vigorelli has really high bottom bracket, so you probably won't have any problems using 175mm cranks, especially with clipless pedals.

I don't have one myself but IMHO Vigorellis are very nice, BTW.
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Old 01-13-09, 08:31 AM   #3
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jussik is right.
i had one and ran 172.5mm cranks for a while. never once struck a pedal and i didn't even run clipless pedals.
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Old 01-13-09, 10:31 AM   #4
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I have a 20.5" (~52cm) vigorelli and I'm running 165mm Sugino 75 cranks. There's plenty of room, so I don't think 175 will be a problem.



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Old 01-13-09, 01:25 PM   #5
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What is the rake and trail on your fork? Everyone I've talked to with an off the peg Vig has been pretty unhappy with how the front end reacts.
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Old 01-13-09, 02:24 PM   #6
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What is the rake and trail on your fork? Everyone I've talked to with an off the peg Vig has been pretty unhappy with how the front end reacts.
i forget exactly but when i emailed them a few years ago the geometry was like a regular road bike but with a steeper seat tube angle. head angle was something like 73.5 and rake was like 40mm.
so i ordered a custom one, specified steep head angle and short rake and still ended up with a fork with alot of rake....
i sold that frameset.
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Old 01-13-09, 03:43 PM   #7
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i forget exactly but when i emailed them a few years ago the geometry was like a regular road bike but with a steeper seat tube angle. head angle was something like 73.5 and rake was like 40mm.
so i ordered a custom one, specified steep head angle and short rake and still ended up with a fork with alot of rake....
i sold that frameset.
Your story is pretty common from what I've read. I really wanted a Jackson until I kept running across similar things.
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Old 01-13-09, 03:59 PM   #8
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yeah. i'd only consider a used bob jackson at this point. not having them build me anything again.
i'd maybe ride one of their touring bikes.
wouldn't ride a new BJ track bike because they don't ride the way i like. if i wanted relaxed head angle and big rake then yeah, but i don't really like that feel.
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Old 01-13-09, 05:05 PM   #9
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the vigorelli are not of a tight geometry - it's a grass track bike with plenty of clearance. more like a relaxed or a near road geometry which makes for a comfortable ride, but not "track" in a common way (not twitchy, nimble, or tight), so if thats what you're looking for it's probably not for you.
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Old 01-14-09, 09:59 AM   #10
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the vigorelli are not of a tight geometry - it's a grass track bike with plenty of clearance. more like a relaxed or a near road geometry which makes for a comfortable ride, but not "track" in a common way (not twitchy, nimble, or tight), so if thats what you're looking for it's probably not for you.
Why do people have a conception that "track" geometry is twitchy? It just plain isn't. Have you ever ridden a crit bike?
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