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Big bore cylinder Yamaha XT-660

Product number: BBK-XT660

"Cubic inch capacity is replaceable with nothing but more cubic inch capacity"

This is an old saying, but it's message is still relevant! Especially the torque optimized 660 engines profits a lot from this modification.
The power and the torque will rise over the hole range - more power in all situations.You do not have to change any more parts that the piston, cylinder and the gaskets.

  • OEM cylinder in exchange
  • more power over the hole range
  • due to the high class new Low-Friction coating the new cylinder is even more reliable than the stock one
  • nobody can see this plus of power on your bike (Police...)
  • no more noise on the bike
  • perfect in combination with our racing cam and the cylinder head modification.

Our cylinder is a comprehensive remanufacturing to new condition(with bigger bore). The new low-friction plating is a extremly high grade plating that works perfectly with all kind of piston rings. The new honing is necessary concerning the correct running clearance and the surface roughness adequately to the piston rings.

We do the following on your cylinder

  • de-monting, cleaning and glass bead blasting
  • boring of the cylinder up to the needed size
  • exact honing of the cylinder (cross-grinding!) up to the needed measurement
  • new coating of the cylinder
  • new painting of the cylinder (if choosen)
  • Delivery time about 2-3 days, may vary in high season

The cylinder is avaiable with pre-change or a deposit. (Pre-exchange is standard)
With pre-change you sent us your cylinder. We check it. After the check we will sent the new cylinder to you - subject to availability!
Cylinders for replating must not show any defects (except normal wearing or slighly damaged in the cylinder).

If you like a cyclinder with deposit, we will sent you the big-bore cylinder with a deposit (290.- Euro). After we have received your old cylinder, we will refund the deposit.
Cylinders for replating must not show any defects (except normal wearing or slighly damaged in the cylinder).

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If you are ordering from outside the European Community (EU), all German tax (19%) will be removed.
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