Just thought I'd like to give them a mention for a good bit of free
service the other night. I was trying to mend a leaky Tektro brake
master cyclinder and couldn't find any detailed manuals or diagrams of
how to take the thing apart and the spare bits did not come with
instructions. An quick email to Upgrade and they returned me an
exploded diagram showing how it all hangs together.
http://www.upgradebikes.co.uk/about.php