Piston Kits
Vertex
Vertex Piston Kits VERTEX pistons have an outstanding reputation for quality and performance. Each gravtiy cast piston is created with only premium aluminium alloys utilizing an 12-21% silicon content. The silicon content in VERTEX pistons is crucial to the quality of the piston - it’s critical in decreasing thermal expansion which, when an engine reaches normal operating temperatures, can change the geometry of the piston. Controlling this expansion means VERTEX pistons can be run at tighter tolerances for more power, less noise and a longer lifespan of the piston. When it comes to power and perforance, VERTEX pistons are hard to beat. Forged to the highest quality 2618 aluminium alloy. To aid in the break-in process, and reduce wear, VERTEX pistons utilizes a unique Molybdenum Disulphide (MOS2) coating on the piston skirt.
KTM Models - 4 Stroke
Piston Type Years Size
Piston Kit
Piston Rings Piston Pin
Piston Clips
EXC 250F Std. Comp. 12:1 EXC 250F High Comp.
2001 - 06 75mm 2001 - 06 75mm 2001 - 06 77mm 2007 - 13 76mm 2007 - 13 76mm 2007 - 13 80mm 2007 - 13 84mm 2014 - 16 78mm 2014 - 16 78mm
.V .V
711140 711140 711140 715402 715402 715402 715402 715441 715441 715441 715441 715441 715441 711195
22978A 22980A
56-R9309 56-R9309
72075 72075 72075 72055 72055 72055 72055 72106 72106 72106 72106 72106 72106 72106 72106 72106 72055 72055 72055 72055 72106 72106 72106 72106 72106 72106 72106 72106 72106 72106 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098 72098
56-R917.V
EXC 250F (Big Bore)
22979200
EXC 250F Std. Comp. 12.8:1 EXC 250F High Comp. 13.3:1
.V .V .V .V .V .V .V .V .V .V .V
23235A 23236A 23274A
56-R9429 56-R9429 56-R9366 56-R9362 56-R9358 56-R9358 56-R9358 56-R9361 56-R9406 56-R9406 56-R9406
EXC 250F Std. Comp. 13.3:1 (Big Bore) EXC 250F Std. Comp. 13.3:1 (Big Bore XL)
23296800
EXC 250F Std. Comp. 13.9:1 EXC 250F High Comp. 14.3:1 EXC 250F High Comp. 14.5:1
23757A 23847A 23870A 23867A 24196A 24114A 24115A 24615A 24634A 23235A 23236A 23274A
GP Racer Choice 2014 - 16 78mm
EXC 250F Std. Comp. 14.5:1 (Big Bore)
2014 - 16 81mm 2017 - 23 78mm 2017 - 23 78mm
EXC 250F Std. Comp. 12.8:1 EXC 250F High Comp. 13.5:1 EXC 250F High Comp. 13.2:1
GP Racer Choice 2017 - 23 78mm
EXC 250F Comp. 14,5:1
2024 - 26 81mm
590281000002 715441 590281000002 715441
EXC 250F High Comp. 15,1:1 SX 250F Std. Comp. 12.8:1 SX 250F High Comp. 13.3:1
GP Racer Choice 2024 - 26 81mm
2006 - 12 76mm 2006 - 12 76mm 2006 - 12 80mm 2006 - 12 84mm 2013 - 15 78mm 2013 - 15 78mm
.V .V .V .V .V .V .V .V .V .V .V .V
715402 715402 715402 715402 715441 715441 715441 715441 715441 715441 715441 715441
56-R9429 56-R9429 56-R9366 56-R9362 56-R9358 56-R9358 56-R9358 56-R9361 56-R9406 56-R9406 56-R9406 56-R9361
SX 250F Std. Comp. 13.3:1 (Big Bore) SX 250F Std. Comp. 13.3:1 (Big Bore XL)
23296800
SX 250F Std. Comp. 13.9:1 SX 250F High Comp. 14.3:1 SX 250F High Comp. 14.5:1
23757A 23847A 23870A 23867A 24097A 24114A 24115A 24142A 24615A 24634A 23711A 23641A 24213A 24214A 24694A 24695A 24238C 24696A
GP Racer Choice 2013 - 15 78mm
SX 250F Std. Comp. 13.9:1 (Big Bore)
2013 - 15 81mm 2016 - 22 78mm 2016 - 22 78mm
SX 250F Std. Comp. 14.4:1 SX 250F High Comp. 14.7:1 SX 250F High Comp. 14.5:1
GP Racer Choice 2016 - 22 78mm
SX 250F Std. Comp. 14.4:1 (Big Bore)
2016 - 22 81mm 2023 - 26 81mm
SX 250F Comp. 14,5:1
590281000002 715441 590281000002 715441
SX 250F High Comp. 15,1:1 EXC 350F Std. Comp. 12.3:1 EXC 350F High Comp. 12.8:1 EXC 350F Std. Comp. 12.3:1 EXC 350F High Comp. 13.1:1 EXC 350F Std. Comp. 14.0:1 EXC 350F High Comp. 15.1:1 EXC 350F Comp. 14.0:1 (Big Bore)
GP Racer Choice 2023 - 26 81mm
715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431 715431
.Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each .Each
2012 - 16 88mm 2012 - 16 88mm 2017 - 19 88mm 2017 - 19 88mm 2020 - 23 88mm 2020 - 23 88mm 2020 - 23 90mm 2024 - 26 88mm
. VERTEX . VERTEX . VERTEX . VERTEX . VERTEX . VERTEX . VERTEX . VERTEX . VERTEX . VERTEX . VERTEX . VERTEX
56-R9401 56-R9401 56-R9401 56-R9401 56-R9313 56-R9313 56-R9407 56-R9313 56-R9313 56-R9401 56-R9401 56-R9401 56-R9407 56-R9401 56-R9401 56-R9313 56-R9313 56-R9407 56-R9313
EXC 350F
EXC 350F High Comp. 14,2:1 SX 350F Std. Comp. 13.5:1 SX 350F High Comp. 14.0:1 SX 350F High Comp. 14.5:1
2024 - 26 88mm 24672A
2011 - 12 88mm 2011 - 12 88mm
23641A 23642A 23734A 23656A 23831A 23848A 24694A 24695A 24238A 24696A
GP Racer Choice 2011 - 12 88mm
SX 350F Std. Comp. 13.5:1 (Big Bore)
2011 - 15 90mm 2013 - 15 88mm 2013 - 15 88mm 2016 - 22 88mm 2016 - 22 88mm 2016 - 22 90mm 2023 - 26 88mm
.V
SX 350F Std. Comp. 13.6:1 SX 350F High Comp. 14.1:1 SX 350F Std. Comp. 14.0:1 SX 350F High Comp. 15.1:1
. VERTEX . VERTEX . VERTEX . VERTEX
SX 350F Std. Comp. 14.0:1 (Big Bore)
.V
SX 350F Comp. 14.6:1
. VERTEX
*Please visit our website for current prices
* Note; Most Kits are available from standard size up to +2.00mm over size *
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
E72
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