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Old 14.06.2008, 22:56
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Need help with bike, I offer help with cars and computers!

Ok, might sound a bit strange, but:

I have just bought a used mountain bike (my first real bike) and I have some mechanical issues with it (dragging hydraulic brakes i believe, and some noise in the hub of the rear wheel). I can't figure it out by myself, and the bike repair shops charge a fortune, and have waiting lists of several weeks.
I really need help with fixing it, I hope one of you guys could give me a helping hand.

I do car electronic stuff for VW/Audi/Skoda/Seat. Diagnose, and chip-tunning. Also, with any IT related issues - always happy to help.
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Old 14.06.2008, 23:13
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Re: Need help with bike, I offer help with cars and computers!

Regarding the noise from the rear hub, the bearings may have to be overhauled.

Here are couple of good resources:

http://sheldonbrown.com/cone-adjustment.html

http://parktool.com/repair/readhowto.asp?id=105

Good luck!
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Old 15.06.2008, 10:41
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Re: Need help with bike, I offer help with cars and computers!

What type of brakes do you have?
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Old 15.06.2008, 10:57
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Re: Need help with bike, I offer help with cars and computers!

Thanks!

I would need hands-on help though, the tasks at hand exceed my mechanical skills.
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Old 15.06.2008, 11:38
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Re: Need help with bike, I offer help with cars and computers!

Hydraulic brakes on rotors, two pistons per caliper.
The bike is a Merida Matts with most of the components Shimano.
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Old 15.06.2008, 15:53
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Re: Need help with bike, I offer help with cars and computers!

We will need more information. There are over 25 different models of the Matts, and they come with different brands and models of brake. We can only help if we know the brand of brake and happen to be familiar with it.

One thing to try is to remove the wheel. Then with a large, flat bladed screwdriver push the pads apart. Then put the wheel back in and pump the brake lever until the pads are in place again. This should set the brakes at the right gap.

If it still rubs then have a look and see if it is only rubbing on one side. This will mean that the brakes are off centre. The most common way of fixing this is with most calipers if you loosen the mounting bolts you will notice that the holes they go through are elongated allowing the caliper to be moved from side to side. With these bolts loose, squeeze the lever then retighten the bolts. This should centre the caliper and stop the rubbing. Other brakes have small, spacer washers and you have to add or remove washers to centre the brake properly.

I would offer to help in person, but my mum is in town and I am busy this week. If you are still having problems by the weekend I may have some time on the weekend, but won't know until nearer the time.

PS. Can you make my 1998 BMW 540 go even faster?
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Old 15.06.2008, 22:37
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Re: Need help with bike, I offer help with cars and computers!

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Can you make my 1998 BMW 540 go even faster?
I cannot, but I can translate your cars internal bus communications to plain english and you can site back and be amazed at the amount of data communications your 540i has.

And reprogram a few things ....
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