ORO2U Dirt Catalogue - Section E - Engine and Performance.

Oem Block Reeds

Boyesen

APRILIA Models Years

Boyesen Power Reeds for your Stock Oem Reed Block Maximum Power achieved through air intake, acceleration and distribution. Each Boyesen Power Reed system is unique - tailor made to your machine’s specific model, year and displacement. Boyesen’s patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed. The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs. The stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs. More valves equals more power by creating: More Air Flow The dual-stage design allows you to replace your stock reed stop with a Rev-Plate which permits the reeds to open freely and function efficiently. More Air Velocity The multi-port feature of the bottom reed creates more channels for the charge, delivering increased velocity to the intake ports. More Overall Power Dual-stage reeds work in unison to perform efficiently throughout the entire powerband. The difference in stiffness between the top reed and the bottom reed allow the reeds to respond quickly and accurately to changes in engine pressure. This translates into quicker acceleration, crisper throttle response and increased horsepower throughout the powerband.

Power Reeds

Pro Reeds

Gasket

125 MX

05-653

CAGIVA Models

Years

Power Reeds

Pro Reeds

Gasket

MX 125 3 (Petal) MX 125 4 (Petal)

05-665 05-656 05-608 05-608 05-615 05-615 05-615

WMX 125 WMX 250 WMX 250

1983

1984 - 89

260 500 WMX GASGAS Models Years

Power Reeds

Pro Reeds

Gasket

125 Cross

All

05-671 05-6TR117 05-6TR118

TT 125

1994 - 95 1999 - 01

TXT 125 EC 125 EC 200 EC 250 EC 300 240 Trials

05-P115 05-P21 05-P21 05-P21

1999 - 06 1997 - 05 1999 - 05

05-659

HONDA Models

Revolutionary Performance Boyesen’s patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed. The top reed is

Years

Power Reeds

Pro Reeds

Gasket

CR 60 CR 80 CR 80 CR 80 CR 85

1983 - 85 1982 - 85

N/A N/A N/A

05-603 05-603 05-605 05-631 05-631 05-6132 05-606 05-664 05-682 05-690 05-695 05-6109 05-6117 05-6127 05-633 05-607 05-633 05-684

lightweight and resilient for crisp throttle response at partial throttle or low RPMs. The stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs. More valves equals more power.

1986

1987 - 02 2003 - 08 1991 - 96 1978 - 92 1993 - 97

05-P60 05-P60

EZ CUB90 CR 125 CR 125 CR 125 CR 125 CR 125 CR 125 CR 125 CR 125 TLM 200 CR 250 CR 250 CR 250 CR 250 CR 250 CR 250 CR 250 CR 250 CRM 250 CRE260 CR 450/480

05-P43 05-P01 05-P98 05-P123 05-P144 05-P180 05-P198 05-P214 05-P02 05-P44

05-9201 05-9201 05-9201 05-9201

The Benefits • Quicker acceleration for that all important holeshot.

1998

• Crisper throttle response for fast corner exits and surer jumps. • More horsepower throughout the powerband for guaranteed performance. • Improved engine efficiency and fuel economy for the long distance rider. • Longer life - Boyesen Power Reeds outlast all other aftermarket reed petals.

1999 - 00 2001 - 02

2003 2004

2005 - 07

1978 - 87 1988 - 98 1999 - 00

05-9202 05-9202 05-9202

05-P02

05-P111 05-P146 05-P163 05-P182 05-P200 05-P215

2001 2002 2003 2004

05-696

05-6103 05-6110 05-6118 05-6128 05-633 05-633 05-607 05-625 05-636 05-606

2005 - 07

1995

05-P02

All

05-P44

CR 500 CR 500

1984 - 88 1989 - 01

05-P56

05-9203

XR / XRR500

1982

*Please visit our website for current prices

www.oro2u.com

Tel: 01597 822 666

Fax: 01597 825 224

E400

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