The Cycle X Drag Bike (our lengthy project) brought to life!




Cycle X 849cc Big Bore Kit

Cycle X 849cc piston kits are permanent mold, cast pistons.
836cc piston kits are 65mm, our kits are 65.5mm which allows you to
re-bore your worn, tired 836cc cylinders.

Note: Cycle X 849cc big bore kits are now coated with a "tin" anti friction coating to make them even better.

Cycle X Piston Kit Includes:
Pistons, rings, wrist pins, circlips - 10 1/2 compression ratio will be determined with varying combustion chamber modifications or years.
Large valve relieves for hot street cams - Replacement rings are in stock.
Balanced exact and weigh the same as stock 750 pistons.

Extra displacement and compression require longer duration cams for best performance and reliability.

ENP-849-KIT     $249.95

Call for availability



If you're in need of tech help, refer to our pistons tech tips page.



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NOTE: As of July 1st, 2018, an extended goods and services tax (GST) has been applied to all Australian consumers buying overseas, charging an extra 10% in taxes to us with each purchase. To ensure that you can continue to purchase from us in Australia and we can provide our parts at our usual lower cost, please contact us at either email below if interested in any particular parts so that we can make a special shipping arrangement for you.


It is the sole and exclusive responsibility of the purchaser to determine the suitability of any part, product or work for his or her use.
The purchaser shall assume all legal, personal injury risk and liability and all other obligations, duties and risks therewith.
There is no warranty on High Performance products.

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Cycle X Global Headquarters

6246 US Hwy 51 South

Hazelhurst, WI 54531

Phone: 715-356-7346

Email: (primary) or (for sending attachments)