mountain bike brakes

Guest

This is probably a long shot but i'm desperate. I'm a first year uni student currently undertaking a project looking at mountaon bike brakes, concentrating on Cantilevers, V-brakes and Disc brakes. I can find plenty of information for how the brakes work and which best etc.. but what i really need to know is how these different brakes are made and the materials used. I've searched everywhere and can't find anything. If anyone knows of any sites or where i can get hold of such information, i would be extremely grateful if you could email me at james120479@hotmail.com. Please Help!!

Guest

James - Couldn't find a website but here's what I know:

Cantilevers

• These brakes are normally forged
• The are made from Cast Iron(really, really low end bikes) or Aluminum usually 6061
• Normal rubber pads

V-Brakes

• These brakes can either be forged or machined
• Usually made from Aluminum but to reduce flex some people install Titanium Brake stiffeners
• Normal rubber pads

Disc Brakes

• The Calipers and other parts can either be forged or machined
• Usually made from Aluminum and the disc from Stainless Steel
• Brake pads similar to those on a car or motorcycle

Hope this helps

Guest

James

You might be able to help me. I have 700c rims on my tandem. It is a mountainbike frame so the rear brake pivots are made for 26" mountainbike rims. I need a V-brake with reach of 59mm (that is form the centre of the pivot to the centre of the nut holding the brake pad.) If you know of a scource in Johannesburg or Pretoria please let me know. Assuming you are form RS of A!!!!!!!

Keep those wheels spinning!!!!!!

Big H

rifraf

[quote author=Psycho426 link=board=14;threadid=773;start=0#7123 date=1021789036]<br />[<br />V-Brakes<br />[list][*] to reduce flex some people install Titanium Brake stiffeners[*]<br />[/quote]<br /><br />Hi Psycho,<br />I'm interested in the brakes stiffeners you mentioned - could you please elaborate. My bike <br />( http://www.pashley.co.uk/landrover/apb.htm ) has very thin seat stays and chain stays and having just upgraded to xt v-brakes from tectro cantilevers I'm worried about frame flex and fatigue. Any recomended brands/links<br />cheers<br />rifraf

Goat

rifraf - Brake stiffeners (a.k.a. Brake Boosters) will reduce frame and fork flex and improve braking performance:<br /><br />http://www.cambriabike.com/brakes/brkboost.htm <br /><br />http://www.davincitandems.com/comp.html (halfway down the page)<br /><br />Be sure to check if the one you’re looking to buy is compatible with V- brakes as some are made for cantilevers only.

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rifraf

Thanks for the tips/links Goat - appreciate it. <br />cheers<br />rifraf