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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.
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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.
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00006R-16001RA H BORE-STROKE COMBO 100cc -- $535.00
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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).
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00006RA H BORE KIT 82CC +010 -- $160.00
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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.
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18530 VENTED VALVE CAP -- $35.00
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CAMCHAIN - POWROLL HEAVY DUTY
Stronger and less expensive than the OEM Honda chain.
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18540 H HD CAM CHAIN MINI -- $20.00
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