Piston Kits
Namura
Namura Piston Kits W hy replace your cylinder when you can replace the piston for a fraction of the cost and time? Namura offers direct replacements for the original equipment as well as hi-compression and a variety of oversizes to meet your ride’s needs. They are available in 0.25mm increments, from the -1 (0.25mm) through the -8 (2mm) oversize. We also carry B (0.01mm) and C (0.02mm) oversizes which help extend the life of your expensive coated cylinders; a selection of big bore piston kits is available for some applications. Combine this with the MOS2 coating and hard anodizing, Namura gives you a higher performance piston without the higher price. N amura piston kits come with the piston individually wrapped; a set of OEM quality rings packed in their own box, a wrist pin, and circlips.
HONDA 2-Stroke
Piston Type
Years
Size
Piston Kit
Oem Ref
Piston Rings
Small End Bearing
CR 80 CR 85 CR 125 CR 125
1986 - 02 47mm 2003 - 07 47.5mm 1992 - 03 54mm 2004 - 07 54mm 1986 - 96 54mm 1986 - 96 66.4mm 1997 - 01 66.4mm 2002 - 04 66.4mm 2005 - 07 66.4mm
.A.NT
13120-GBF-840
.SI .SI .SI .SI .SI .SI .SI .SI
56-W643 56-W643 56-W676 56-W859 56-W906 56-W614 56-W702 56-W801 56-W860
56-R703 56-R702 56-R714 56-R704 56-R770 56-R701 56-R700 56-R700 56-R726
56-821 56-821 56-814 56-814 56-801 56-801 56-801 56-801
.P2A.NT 13120-GBF-B00
.NT .NT
13110-KZ4-A90 13110-KSR-A00
CRM 125
+00A.NT
–
.NT
–
CR 250 CR 250 CR 250 CR 250
.A.NT .A.NT
13100-KS7-000 13102-KZ3-L10 13101-KZ3-L20
+00A.NT +00A.NT
–
4-Stroke
Piston Type
Years
Size
Piston Kit 56-W4798 56-W4798 56-W4798
Oem Ref
Piston Rings
Small End Bearing
Z 50R Comp. 10.0:1 XR 50R Comp. 10.0:1 CRF 50F Comp. 10.0:1
1979 - 99 39mm 2000 - 03 39mm 2004 - 16 39mm 2004 - 12 47mm 1997 - 03 47mm 1980 - 84 65.5mm 1981 - 02 65.5mm 2003 - 19 65.5mm 2008 - 09 65.5mm
+000.NT +000.NT +000.NT
– – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
CRF 70F XR 70R
.000.NT .000.NT
56-W052 56-W052
XR 200
.000.NT .000.NT +000.NM +000.NM .7000 ***
56-W4156 56-W4156 56-W4816 56-W4816 56-W0072 56-W4466 56-W8828 56-W4830
XR 200R CRF 230F
CRF 230L,M
XL250
70mm
XR250 XR250L XR250R
1987 - 04 73mm 2019 - 24 71mm 2004 - 09 78mm 2010 - 13 76.8mm 2010 - 13 76.8mm 2014 - 15 76.8mm 2014 - 15 76.8mm 2016 - 17 76.8mm 2018 - 19 79mm 2020 - 24 78mm
***
CRF 250F
.NT
CRF 250R Comp. 13.2:1 CRF 250R Comp. 13.2:1
N Forged
+00A.NF *
.NT .NT .NT .NT .NT .NT
56-R7703 56-R7704 56-R7704 56-R7704 56-R7704 56-R7704
Hyperdryve
.A.NT .A.NF .A.NT .A.NF
56-W950 56-W950 56-W958 56-W958
Comp. 13.2:1
N Forged
CRF 250R Comp. 13.2:1
Hyperdryve
Comp. 13.2:1
N Forged N Forged N Forged N Forged N Forged N Forged N Forged
CRF 250R Comp. 13.5:1 CRF 250R Comp 13.5.1 CRF 250R Comp. 13.5.1 CRF 250RX Comp. 13.5.1
.00A.NF
56-W8800 56-W8806 56-W4788 56-W8806 56-W4788 56-W4830 56-W4628
.A.NF .A.NF .A.NF .A.NF
–
2019
79mm
2020 - 24 78mm 2004 - 17 78mm 1996 - 04 85mm 1996 - 04 89mm 2002 - 08 96mm 2002 - 08 96mm 2009 - 12 96mm 2009 - 12 96mm 2013 - 16 96mm 2013 - 16 96mm 2017 - 24 96mm 2017 - 24 96mm 2005 - 17 96mm
CRF 250RX
– –
CRF 250X Comp. 13.2:1
+00A.NF *
.NT
56-R7703 56-R719 56-K111 56-R7705 56-R7705 56-R7705 56-R7705 56-R7705 56-R7705
XR 400R
.A.NT
13101-KCY-670
Big Bore 11.1 High Comp.
_P
– – – – – – – – – –
_R
56-K111
CRF 450R Comp. 12.0:1
Hyperdryve
.A.NT
.NT .NT .NT .NT .NT .NT
56-W4820 56-W4820 56-W4978 56-W4978
Comp. 12.0:1
N Forged
.A.NT.F .A.NT **
CRF 450R Comp. 12.0:1
Hyperdryve
Comp. 12.0:1
N Forged
.A.NT.F **
CRF 450R Comp. 12.0:1
Hyperdryve
.A.NT
56-W916 56-W916
Comp. 12.0:1
N Forged N Forged N Forged N Forged
.A.NT.F
CRF 450R Comp. 13.5:1 CRF 450RX Comp. 13.5:1 CRF 450X Comp. 12.0:1
.A.NT.F .A.NT.F .A.NT.F
– –
56-W9949 56-W9949 56-W4820
.NT
56-R7705
* Will not accept oem rings from 2006-07 CRF250R or 2007-09 CRF250X models ** Will not accept oem rings or circlips *** Please Note; Piston brand for particular item is not Namura
*Please visit our website for current prices E54
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
Made with FlippingBook - Online magazine maker