trike build advice needed

[triker]

I'm building a vmax trike with sierra rear disc brakes. The rear master cylinder I was going to use is out of stock (3/4" 19.05mm bore) and I’ve been offered a 13/16" 20.64mm bore as a substitute will this be ok to use.
Thanks in advance matt

[addjunkie]

i used a 5/8th, one others use 3/4, not heard of one that big........load on evil bay new

http://www.ebay.co.uk/itm/GIRLING-TYPE-MASTER-CYLINDER-75-/260910527984?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3cbf7ab5f0


use the remote type reservoir so you can make sure its above the brakes and hide it away.

[harry]

Should work fine but you might want to increase the leverage of the pedal to compensate for the bigger bore.