ORO2U Dirt Catalogue - Section E - Engine and Performance.

Piston Kits

Namura

GASGAS 2-Stroke

Piston Type

Years

Size

Piston Kit

Oem Ref

Piston Rings

Small End Bearing

MC 50 MC 65 MC 85

2021 - 23 39.5mm 56-W802.A.NT 2021 - 23 45mm 56-W313.A.NT 2021 - 24 47mm 56-W012.A.NT 2000 - 11 54mm 56-W859.A.NT 2003 - 04 54mm 56-W859.A.NT 2002 - 10 54mm 56-W676.A.NT 2021 - 24 54mm 56-W010.A.NT 2000 - 11 54mm 56-W859.A.NT 1997 - 13 66.4mm 56-W824.A.NT 2021 - 23 66.4mm 56-W824.A.NT 2021 - 23 66.4mm 56-W824.A.NT 2022 - 23 66.4mm 56-W824.A.NT 2021 - 24 72mm 56-W854.A.NT 2021 - 24 72mm 56-W854.A.NT

56-R729 56-R731 56-R703 56-R704 56-R704 56-R714 56-R722 56-R704 56-R725 56-R725 56-R725 56-R725

56-846

56-821.SI 56-836.SI 56-836.SI 56-836.SI 56-800.SI 56-836.SI 56-801.SI 56-802.SI 56-802.SI 56-802.SI 56-802.SI 56-802.SI

EC 125 Domed Top Piston

Enduro Cross 125

MC 125 Flat Top Piston

MC 125 Dual Ring

ME 125 Domed Top Piston

EC 250 Single Ring EC 250 Single Ring EX 250 Single Ring MC 250 Single Ring EC 300 Dual Ring EX 300 Dual Ring

4-Stroke EC 250F

Piston Type Hyperdryve

Years

Size

Piston Kit

Oem Ref

Piston Rings

Small End Bearing

2010 - 15 77mm 56-W9702.A 2010 - 15 77mm 56-W9702.A.NF 2021 - 23 78mm 56-W265.A.NT 2021 - 23 78mm 56-W265.A.NT 2021 - 24 88mm 56-W4735+00A.NT 2021 - 24 88mm 56-W4735+00A.NT 2022 - 24 88mm 56-W4735+00A.NT 2013 - 15 95mm 56-W4785.A.NT 2013 - 15 95mm 56-W4785.A.NT.F

56-R728 56-R728

– – – – – – – – –

N Forged N Forged N Forged

EX 250F MC 250F EC 350F EX 350F MC 350F EC 450F

Hyperdryve Hyperdryve Hyperdryve Hyperdryve

56-R7718.NT 56-R7718.NT 56-R7718.NT

56-R759 56-R759

N Forged

*Please visit our website for current prices

E-mail: sales@oro2u.com

www.oro2u.com

E38a

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