Cylinder VOCA BigBore 100cc Yamaha DT Ø54mm stroke 43mm cylinder head not included

Cylinder VOCA BigBore 100cc Yamaha DT Ø54mm stroke 43mm cylinder head not included

After months of research in circuit and at the test bench, the manufacture Voca, present us with the cylinder Voca BigBore 100cc for Yamaha DT.

Its an Aliminium cylinder with a chrome nickel treatment of the best quality, to give us the best performance from our engine. Built with 5 transfer ports and bridged exhaust port

It is supplied with a Vertex piston of 1 single segment measuring 53.95mm.

The Voca BigBore Cylinder has to be mounted next to a 43mm stroke crankshaft and 84mm connecting rod.

Thanks to  your diameter and your stroke you can get a cylinder capacity of 100cc

 The cylinder head is not included, you must mount the  VCR-RD11DT.54. We recommend mounting next to the crankshaft  VOCA HQ RACING 43MM/85MM.

Attention:  you must use the  Reed Valve VForce 4 de Yamaha YZ 85cc.

Squish recommended by Voca with is cylinder head is 0,8mm

Fits on:

• Yamaha DT 50 Portugal ( have to be adapted )
• Yamaha DT 80 LC
• Yamaha RD 80 LC
• Yamaha TZR 80 LC

Assembly instructions.