Powroll Motor Performance - Since 1964  

 

 

 

Huge Sale!

Up to 50% off!

 

 

   ORDER ONLINE

 

 

 

 

 

Powroll

13840 Commercial Lp

Crooked River, OR

97760

 

Mail:

PO Box 920

Redmond OR  97756

 

Phone

541-923-1290

 

Fax

541-923-5637

 

Email

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Powroll - 4 Stroke Performance

 


STOCK SPECIFICATIONS:    39mm BORE X 41.4mm STROKE   10:1 COMPRESSION

FYI:  Although externally similar to the Z50, the Honda XR and CRF 50 internals are significantly different from the Z50.  No performance parts are readily interchangeable. 

Chinese and Taiwanese engines which are 'like Honda' design are not copies of the CRF or XR.  These engines share similarities to a variety of Honda engine designs, but aren't the same as any ONE Honda engine.


100cc BORE & STROKE COMBINATION

50mm Bore, 9.5mm Stroke, 11:1 Compression

More than a 70% increase over stock hp.

Excellent torque and midrange power.

INCLUDES: Stroker:  Powroll Tough Rod Assembly: Rod, pin, needles. Piston Kit: Piston, pin, rings, clips, headgasket, basegasket.

REQUIRES: Send in your crank for modification.  Download our Stroker Booklet for details.  Honda 70 Cylinder & Head (not included with kit). Boring. Rejetting.

00006R-16001RA H BORE-STROKE COMBO 100cc -- $535.00


Quantity


PISTON KIT - OVERSIZE FOR 100cc BORE & STROKE COMBO

50.25mm piston, 11:1 compression + .010” Oversize

INCLUDES: Piston, pin, rings, circlips, headgasket, basegasket.

REQUIRES: Boring.  Must be used with Powroll stroker (listed above).

00006RA H BORE KIT 82CC +010 -- $160.00

Quantity

VENTED VALVE CAP

This Billet cap produces more power by allowing the engine to vent excess crankcase pressure. Reducing crankcase pressure will allow your engine to rev higher and pull harder!  Choose Gold, Blue, Red or Silver.

18530 VENTED VALVE CAP -- $35.00


Quantity


CAMCHAIN - POWROLL HEAVY DUTY

Stronger and less expensive than the OEM Honda chain. 

18540 H HD CAM CHAIN MINI -- $20.00

Quantity

 

 

Powroll Motor Performance

13840 Commercial Lp  Crooked River, OR  97760     Phone (541) 923-1290    Fax  (541) 923-5637

Copyright © 2007 Powroll Inc.  All rights reserved.  All photos and text are the intellectual property of Powroll and cannot be reproduced without permission.

Descriptions and pricing are subject to change without notice.