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Joe Waugh 531 C. 22 1/2" frame, cinelli cast crown and bottom bracket, chrome dropouts and chainstay. Shimano 7400/Campag record components. Ice blue colour.
Steve Thornhill 531C. 22 1/2" frame. Shimano 600 EX/Campag Record components. Light pink.
Roberts 531C. 22 1/2". Track bike. Very rigid. Campag hubs. Dark blue. Drilled for a front brake.
All in my sister's attic in Alvechurch - sorry no photos as I live in London now. All in VGD.
Offers, and questions are welcomed.
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I use the Sheldon method, more or less.
Put the bike upside down, turn until you find a tight spot, slacken bolts but not completely just enough to allow the chainring to move if it receives a tap, then tap the chain to move the ring slightly - because it is at a tight spot it should move the chainring slightly in such a way to remove some of the tight spot tension, then tighten bolts a little, rotate again to see if there is still a tight spot then begin again if yes. Aim to have a significant improvement, not perfection.
This has worked for me.
Afterwards when you position the wheel do in a way so that there is a little slack in the chain when you feel with your fingers, but not enough that you can feel movement when you check by moving the cranks backwards and forwards. The wheel should turn freely, check over the whole rotation as a really tight spot left will potentially damage bearings and also increase drive train resistance (of course).
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One thing that will break spokes is if the tensions are all out of balance throughout the wheel putting stress on individual spokes - okay that is obvious, and already said.
One way to check if this is the case is to pluck the spokes (like a harp) if they all have more or less the same 'note' (which will be a different 'note' on each side of the wheel if it is dished) then okay - it is another problem.You will probably find though is that there are very different notes even if the wheel is more or less true, in which case you need to properly retension those with much higher and lower notes whilst keeping it 'true' (easier said than done unless you have some skill here - better for a 'builder' with a jig to do), just replacing snapped spokes will not work - they will snap again.
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For general road/commuting I would begin with around 72" - for instance 48 front ring, 18 sprocket, if your rear wheel is threaded both sides then put a bigger sprocket on the other side - to make a smaller gear when you turn the wheel around for polo. When you do this make sure that your chain is the right length so that you can run both size sprockets.
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Any thoughts on this please.
On the same wheel I have in two weeks had the rubber split next to the valve stem causing a puncture.
The stem-hole does not seem to have any sharp edges, I have kept the tube at the same pressure (for the last two years - the same wheel, same pressure).
The valve is in at 90 degrees. I do not even have a wild theory about why this is happening. Any thoughts out there please?
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This will sound silly but you can easily check spoke tensions by plucking them like a harp - it will not tell you the right tension, but an unevenly tensioned wheel will have very differently sounding spokes, and it may then give you some ideas where to begin retensioning. If it is beyond anything minor and unless you know what you are doing, and have a jig, I would suggest taking it to a builder to retension
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48x17 with 25mm tyres gives about 74". I can get up any hill I need to although Highgate area is a push and 30 mph is quite achievable on the flat without spinning out. I would try around 74" unless you are going for long rides with steep hills. I dropped down to 71" once or twice but just couldn't stop myself putting the 17 back on a week later ....
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From what I remember of my threadless it simply slid into the bottom bracket shell and the lock nuts at either end clamped it in place - so it does not matter about the condition of the threads in the bottom bracket at all. Probably if you can make it a really snug fit in the bottom bracket shell and 'locktight'/glue the lock rings then it will work fine.
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I did it once using A-roads in somewhere between 6 and 7 hours. It was a hard ride, I was trying to do it at a good speed and I was really fit then too. I do not remember any hills of any significance. 129 miles from where I lived in East London. Unless you are VERY fit (I was racing then, long road races and team time trials) go on main roads or take two days over it.