2009 Honda CRF150R / RB

Introduction

With its powerful and responsive Unicam four-stroke engines, race-ready suspension and track-designed chassis components, the CRF150R and big-wheel CRF150RB have revolutionised the small-displacement class and become familiar faces on podiums around the world. Seasoned riders will appreciate the thrilling performance of a true Honda CRF ride. Aspiring young riders will revel in its big-bike, but manageable performance and handling attributes. The CRF150R/CRF150RB is the ideal tool for inspiring fun-filled exhilaration, confidence and a lifelong taste for fun and winning!

Key Features

• Lightweight plastic body components (radiator shrouds, sidecovers, rear fender, seat base, fuel tank, front fender and front number plate) feature a slim, aggressive style
• Seat cushion foam follows the shape of the fuel tank, providing a smooth transition to increase rider mobility and comfort
• Non-slip seat cover for increased rider control
• Large-capacity airbox and reusable two-stage foam air filter
• Handlebar bend optimises rider position and comfort
• Adjustable front brake lever and compact master-cylinder assembly
• HRC works-type rear brake system integrates the rear master cylinder and fluid reservoir, eliminating the separate rear master-cylinder reservoir and hose
• Works-type handlebar grips add to rider comfort
• Stainless steel clutch cable for long life and improved feel and action

Engine

• Powerful 149cm3 liquid-cooled 4-stroke 4-valve Unicam engine produces impressive power across a wide rev range for easy-to-control operation
• Compact, lightweight engine assembly weighs only 19.8 kilograms
• Unicam valve train features a single camshaft directly actuating two 26mm steel intake valves combined with twin, low-friction rocker arms actuating two 22.5mm steel exhaust valves. This compact design provides the light weight of a single-cam drive and an optimum combustion chamber shape for maximum power at all engine speeds
• Crankshaft made of high-strength, low-carbon steel with carburized main journals for maximum durability at sustained high-rev operation
• Forged slipper piston and rings are lighter than conventional designs, feature high 11.7:1 compression, and rev quickly while maintaining excellent cylinder sealing and high-rpm power
• Double-carburized connecting rod utilises big-end needle bearing for maximum high-rpm performance and durability
• Lightweight NiCaSil cylinder lining ensures cooler operation for extended engine life.
• Press-fitted aluminium spark plug pipe fits between the two exhaust rocker arms, further contributing to compact cylinder-head design
• Gear-driven balancer reduces vibration and drives the water pump
• Lightweight, compact, internal auto decompression and handlebar-mounted hot-start system ensure easy starting, hot or cold
• 32mm Keihin FCR flat-slide carburettor features four rollers on the slide for light throttle effort, smooth operation, crisp throttle response and excellent rideability
• Carburettor features throttle position sensor (TPS) that helps maintain linear response throughout the rev range
• Vertically split crankcase features a built-in oil pump, reducing weight compared to conventional designs
• Twin-sump lubrication system separates the oil supply for the crankshaft, piston and valve train from the clutch and transmission. This ensures a cool supply of oil to the clutch, eliminates potential clutch and transmission material contamination of the engine oil, reduces the amount of circulating oil and permits the use of a smaller oil pump
• Rugged six-plate clutch has ample surface area to handle the engine's impressive torque, while carefully matched clutch springs provide a light feel at the lever
• Durable close-ratio five-speed transmission
• Exhaust system uses lightweight stainless exhaust header and repackable aluminium muffler.
• Dual radiators feature a refined core area for improved heat dissipation compared to conventional dual-radiator designs

Chassis

• Lightweight, high-tensile steel frame with large-diameter frame tubing and cross-member provides excellent turning performance and straight-line tracking
• Removable sub-frame is strong and durable
• Wide-section aluminium top and bottom triple-clamps position fork tubes far apart for excellent turning and control
• Tapered-roller steering-head bearings enhance durability
• 37mm inverted leading-axle Showa cartridge-type front fork features friction-reducing design to improve compression and rebound control
• Front fork offers adjustable compression and rebound settings
• Lightweight and rigid box-section aluminium swingarm
• Pro-Link rear suspension system features fully adjustable Showa damper for superb compliance and wheel control
• Unique CRF150R front and rear suspension settings deliver ideal bump absorption characteristics.
• Strong, lightweight wheels are durable and minimise unsprung weight
• Lightweight front and rear disc brakes with high-performance pads offer powerful, precise braking control
• Stout 15mm front and 17mm rear axles incorporate a surface treatment for added strength and durability

Colours

• CRF150RB: Black
• CRF150R ’07: Extreme Red (with white number plate and sidecovers)

Availability & Model Changes For 2009

Availability:

• CRF150RB: January 2009
• CRF150R ‘07: Now

Changes for 2009:

• CRF150RB: New colour
• CRF150R ‘07: No changes

Technical Specification

Engine

• Type - Liquid-cooled 4-stroke 4-valve SOHC single
• Displacement - 149cm3
• Bore x Stroke - 66 x 43.7mm
• Compression Ratio - 11.7: 1
• Max. Power Output -* 16.6kW/12,500min-1 (95/1/EC)
• Max. Torque - 13.6kW/10,000min-1 (95/1/EC)

Fuel System

• Carburetion - 32mm Keihin FCR flat slide carburettor with throttle position sensor (TPS)
• Fuel Tank Capacity - 4.3 litres

Electrical System

• Ignition System - Solid-state Capacitor Discharge (CDI) with electronic
  advance
• Starter - Primary kick

Drivetrain

• Transmission - 5-speed
• Primary Reduction - 4.117 (70/17)
• Gear Ratios - 1; 2.214 (31/14), 2; 1.647 (28/17), 3; 1.318 (29/22), 4; 1.105 (21/19), 5; 0.956 (22/23)
• Final Reduction - 3.333 (50/15) *3.733 (56/15)
• Final Drive - #420 roller chain

Frame

• Type - Semi-double cradle; steel tube

Chassis

• Dimensions (LxWxH) - 1,832 x 770 x 1,133mm, *1,900 x 770 x 1,171mm
• Wheelbase - 1,260mm, *1,285mm
• Caster Angle - 27° 02', *27° 48'
• Trail - 78mm, *96mm
• Seat Height - 833mm, *866mm
• Ground Clearance - 302mm, *335.2mm
• Kerb Weight - 83kg, *84.8kg

Suspension

• Type - Front; 37mm inverted Showa leading-axle telescopic fork with adjustable compression and rebound damping; 274.3mm (*274.3mm) axle travel
• Rear; Pro-Link with single Showa damper, adjustable compression and rebound damping; 274.3mm (*292.1mm) axle travel

Wheels

• Type - Front; Aluminium rim/wire spoke
• Rear; Aluminium rim/wire spoke
• Rim Size - Front; 17 x 1.40 *19 x 1.40
• Rear; 14 x 1.60 *16 x 1.85
• Tyre Size - Front; 70/100–17 40M *70/100–19 42M
• Rear; 90/100–14 49M *90/100–16 52M

Brakes

• Type - Front; 220 x 3mm hydraulic disc with single-piston calliper and sintered metal pads
• Rear - 190 x 3.5mm hydraulic disc with single-piston calliper and sintered metal pads

* CRF150RB

All specifications are provisional and subject to change without notice