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3

There are multiple types of valve extension: The extenders you have relocate the valve core. The other kind are a plain tube which tapers with a similar profile to a normal valve, and screws onto the valve, over the existing valve core. Once the tyre is inflated you can remove the extension and tighten the valve-lock-nut.


3

I would suggest your frame may be a bit small for you. I'm slightly shorter than you and I have a Scultura 906 in a 54 cm frame (size on the frame sticker says S/M). The longer stem may assist, however it may put you in a more race position which could lead to the neck pain. As for the calf cramps this could be a couple of things; 1) seat height too low, 2) ...


3

As I've said in other answers, the right tire pressure function of you and your bike and your terrain. You'll have to play with the tire pressure to balance the ride quality.Just because the tire says pressure x on the sidewall doesn't mean it makes any sense running the tire at that pressure since it might just give a bouncy ride which compromises your ...


1

I also would recommend finding tubes with valves of the correct length. However, if that fails, I've had success using a presta to schrader adapter. Often with shorter valves, there won't be enough room to attach a pump head, but there will be enough to attach an adapter, which you can then use a pump that works with schrader valves. Most pumps have the ...


1

Yes, better tires can help prevent punctures. It has already been mentioned that there are tires specifically made to enhance puncture resistance. One thing that has not been mentioned is that better tires also have stronger sidewalls to offer more tire support when going over bumps and thus better protect against pinch flats. (Once, I had a cheap tire with ...


1

If you dont have much experience with a bike setup and maintenance, then get a old-stock bike from a local shop. The amount of money you will pay extra will be equal to the money spent for putting the online-bought bike together. Also local dealer will be able to find you proper bike size - just because you are X inches tall, doesn't mean you should by ...



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