The Burris BMC 515-80x128 3rd bearing support for IAME reed valves and other engines using the 80 x 128mm mount pattern. All surfaces have been machined  to insure the mount does not put the crankshaft in a bind which allows greater RPM's and less drag. Why spend the money to have your engine machined and then put it on a crankshaft support that's not? Complete with hardware. Available for all of the popular clutches see below. L&T, DXL & dry clutches. 

*requires the use of a chassis plate to complete the mount system. Flat chassis plates (550 American / 558 International) or the 5 degree (592 American / 593 International) work with the 3rd bearing support

*American space frame rails are 2.875" and International frame rail spacing is 92mm / 3.625" center to center of the tubes

Designed for right hand drive mounting of the engine. If you want to use this on the left side it will require a BMC 554 flat adaptor plate and 35mm long SHCS where you will place the 3rd bearing support between the 554 adaptor plate and the engine using the 8 x 35mm SHCS to attach both.

Engine models that this adapter plate fits (80mm x 128mm bolt pattern):

K55

TT25

TT65

TT75

BM Atlas

SIRIO TT45

K35