Folding Bikes - Moulton F frame question
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06-03-06, 01:08 PM
I found a Moulton today at the neighboorhood garage sale, I've been waiting for them to sell it. Anyways, I plan on turning it into a travel bike and want to lighten it up. Is the bottom bracket thread a standard english thread or something proprietary. Has anyone built up wheels using the 305 erto rims on a Moulton. I was wondering about that for tire selection. Thanks,
06-03-06, 03:05 PM
"neighboorhood garage sale" Must be a good neighborhood. I hope you paid more than $50 for it. My guess is you can email the moulton people directly. They also have their own online commutities ect
06-03-06, 03:26 PM
ETRTO 305s are the standard, smaller 16" wheels, so you shouldn't have a problem finding rims, tubes, or tires. While I'm sure most of the tires will be fatter, a quick search at Gaerlan shows that Primo Comets come in that size with a 1.35" width. The others are 1.5" and wider.
06-03-06, 06:07 PM
The F-frame Moulton should come with 349 wheels! The are pretty much the standard 16" size (at least in Europe). If you have any possibility of using 349, that's what I would do - they are noticably bigger than 305, and there's a bigger selection of quality tires.
My wife and I both had F-frames in London, but sold them before moving to SF. I really miss mine, it was a great bike!
Bottom Bracket 68/110. I am doing the same project (unfortunatly my does not separate), see the yahoo moulton group and books available. I am going with the 349 size, high pressure, most use primo commets, brompton proprietary, or you could try 'scorchers' (These are wider). My thoughts were that seeing the suspension was plush the high pressure tyres were the way to go (I have seen some 1 inch wide tyres), maintenance on the suspension looks like it could be interesting. Are you staying with the hub?
06-03-06, 07:56 PM
I think so. The hub is going to need to be cleaned/repacked, but I think everything is fine inside. I'm thinking drop bars and the FW. How big is the stock chainring, I haven't gotten around to counting. The biggest ring I have is a 54 on a campy crank. Has anyone run a nr crank on a 4 spd that can tell me what length spindle they used? I've heard of a reinforcement that people do to the rear fork, does anyone know what it is? I've been wanting a travel bike and got into a nightmare attempt to build up a twenty. I'm hoping this will turn into my main geared bike for around town.
I believe the front was 52 and rear 13 tooth, the group I mentioned have threads on reinforcement of the rear fork, just past the rubber block near the pivot and also around the outer pivot if it is spot welded. I believe the American version (?Huffy) may have been different. I was also looking for a twenty and came across mine, cheaper than a twenty so I went for it.
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