The TM1 master cylinder is manufactured from lightweight aluminum with a 5/8” bore and dual 10mm x 1.00 outlets. Side mounting on 3.53” bolt spacing using 5/16” bolts, its compact design is perfect for applications where space is limited. The TM1 master cylinder is manufactured from lightweight aluminum with a 5/8” bore and dual 10mm x 1.00 outlets. Side mounting on 3.53” bolt spacing using 5/16” bolts, it's compact design is perfect for applications where space is limited. Includes push rod, dust boot and a permanent mount .39” diameter clevis. An alternative 5/16-24” threaded pushrod is available under part # 230-7134. Remote reservoir kits are available under part # 260-11098.