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Bikes

Novice Riders 4 - 6 Years Old

Young children that have little to no previous riding experience. The PWs are ideal bikes for younger children, have automatic gearing (no clutch) and are very light weight. This make them ideal for 4-6 year olds, who want to try motocross for the first time.

Yamaha PW50

Type: 2-stroke, Reed-valve, air cooled, single cylinder
Displacement: 49cc
Bore x Stroke: 40mm x 39.2mm
Compression ratio: 6.0:1
Maximum power: 2kW (2.7HP) @ 5,500rpm
Maximum torque: 3.8Nm (0.39kg-m) @ 4,500rpm
Overall length: 1,245mm
Overall width: 575mm
Overall height: 715mm
Seat height: 485mm
Wheelbase: 855mm
Minimum ground clearance: 105mm
Dry weight: 37kg Front tyre: 2.50-10-4PR
Front brakes: Drum
Front suspension: Telescopic fork
Front travel: 60mm
Rear Tyre: 2.50-10-4PR
Rear suspension: Unit swing
Rear travel: 50mm
Rear brakes: Drum

Novice Riders 6+ Years Old

Older children that have little to no previous riding experience. The JS80s are ideal for beginners of any age, if they fit, which means up to about 12 years old. These bikes quickly inspire confidence in novice riders as they have automatic gearing (no clutch) which means the rider can just rev & go!

Jianshe JS800PY

Engine type : Single cylinder, air cooled 2 - stroke Single cylinder
Piston displacement : 79cc
Bore x stroke : 47mm x 45.6mm
Compression ratio : 8.8 : 1
Max power : (approx.) 2.43hp / 3.26kw
Max speed : (approx.) 35mph / 55 km/h
Starter : Kick
Engine lubrication : Auto-Lube, Air cooled 2-stroke oil. 0.95L
Fuel tank capacity : 5.4L
Fuel type : Unleaded / 91 octane or higher
Transmission / final drive : 3- speed / chain
Clutch : Semi - automatic. Centrifugal
Overall length x width x height : 1540mm x 640mm x 880mm
Wheelbase : 1055mm
Seat height : 645mm
Max Load : 40KG
Dry weight ; 57kg
Suspension (front - rear) : Telescopic hydraulic forks - monocross Brakes (front - rear) : Drum - drum
Tyres (front - rear) : 2.50/14 - 3.00/12

Kawasaki KLX110

Displacement 112cc
Bore X Stroke 53.0 x 50.6 mm
Horsepower: N/A
Torque: N/A
Transmission 4-speed automatic (base)/4-speed manual (L)
Final Drive: Chain
Seat Height: 26.8 in.
Rake: 24.8
Trail: 2.0 in.
Front Suspension: 30mm telescopic fork; 4.3in. travel
Rear Suspension: Nonadjustable; 4.3-in. travel
Front Tire: 2.50x14
Rear Tire: 3.00x12
Wheelbase: 42.3 in.
Fuel Capacity 1.0 gal.
Wet Weight: 168 lb.

Intermediate Riders

Children that have fully mastered basic motorcycle control. The Kawasaki KX range are proper 'mini-motocrossers' that children can progress to once they have mastered the basic riding and control skills on the Yamaha PWs and/or Jianshe JSs. The KXs have 6-speed, manual gearboxes and long-travel suspension. These bikes are ideal for learning clutch / gear control and developing more advanced riding techniques such as handling jumps, flat and berm cornering, etc. The KX60s typically suit children between 5-7, whilst the KX 65s are designed for children in the 7-10 age range. See Fabian aged 6yrs jumping a KX 65 (Gallery Picture No 67).

Kawasaki KX60

Displacement 60 cc
Bore X Stroke 43.0 x 41.6 mm
Oil 2- stroke racing oil for liquid cooled engines
Coolant 50% water /50% ethylene glycol base antifreeze
Clutch Type Wet, Multi- disc, Manual
Transmission 6- speed, Constant mesh, Return shift
Wheelbase 1,080 mm
Seat Height 710 mm
Ground Clearance 250 mm
Dry Weight 50.5 kg
Curb Weight 53.5 kg
Fuel Tank Capacity 3.5 litre
Tire Size Front 2.50- 14 4PR Tube- type
Rear 3.00- 12 4PR Tube- type
Brake Type Front Mechanical Drum (Leading/ Trailing)
Rear Mechanical Drum (Leading/ Trailing)
Brake Size Front 90 x 20 mm, Rear 90 x 20 mm

Kawasaki KX65

Engine: Two-stroke single
Displacement: 64.7cc
Bore x stroke: 44.5 x 41.6mm
Cooling: Liquid
Carburetion: Mikuni VM24SS
Induction: Four-petal reed valve
Compression ratio: 8.4:1
Ignition: Electronic CDI
Transmission: Six-speed
Frame: Semi-double-cradle,high-tensile steel
Suspension type, front: 33mm leading axle conventional fork
Suspension type, rear: UNI-TRAK® single shock system
Suspension adjustments, rear:Preload
Brakes, front / rear: Hydraulic disc
Overall length: 62.6 in.
Overall width: 29.9 in.
Overall height: 37.6 in.
Ground clearance: 12.0
Seat height: 29.9 in.

Below is a testimonial from a father appreciating the range of bikes:

Dear Simon

I just wanted to send a few grateful words of thanks to you all for getting Joel started in the world of motocross.

Joel has recently been diagnosed with a complex dyslexic auditory processing disorder which makes the progress Joel achieved at CYR a real testimony to the excellent tuition received. The auditory processing disorder was diagnosed following an independent educational physiologist's assessment. The assessment highlighted that Joel struggles to digest/react to verbal instructions and that this can hinder his approach to learning. This has also had a negative impact on his self confidence.

When we consider how reticent Joel was when he started to learn to ride at CYR to the progress that he made from the PW80's, to the KX60, KX65 and even jumping a KX85 over the freestyle ramp it goes to prove that the teaching methods utilised by the team at CYR work for all abilities.

Joel is nearing his 11th birthday (May) and continues to enjoy riding motocross.

Once again a big thank you to you all.

Kind regards

Sean Harsent

Intermediate / Advanced

10+ years old. Older children who possess motorcycling skills. The Kawasaki KX 85s are highly tuned, competitive moto-crossers designed for children over 10 who possess intermediate to advanced skills. The KX85s come in two formats - The 'small wheel' version aimed at 10-13 year olds and the 'standard wheel' version for 13 yrs and older. With the exception of the wheel size, the bikes are identical. CYR restricts power output while riders are learning clutch, hill-starts and jumping.

Kawasaki KX85 I Small Wheel

Engine type: Liquid-cooled, 2-stroke Single with KIPS
Displacement: 84 cm³
Bore x stroke: 48.5 x 45.8 mm
Compression ratio: 10.0:1 (low speed); 9.2:1 (high speed)
Valve/Induction system: Reed valve
Fuel system Carburettor: Keihin PWK 28
Ignition: Digital CDI
Starting Primary: Kick
Transmission: 6-speed, return
Clutch: Wet Multi Disc
Frame type: Perimeter, high-tensile steel
Rake/Trail: 27° / 89 mm
Wheel travel front: 275 mm
Wheel travel rear: 275 mm
Tyre front: 70/100-17 40M
Tyre rear: 90/100-14 49M
Steering angle: left / right 45° / 45°
Suspension front: 36 mm leading-axle upside-down telescopic fork with 16-way compression damping
Suspension rear: Bottom-Link Uni-Trak with adjustable preload, 4-way compression and 20-way rebound damping
Brakes front: Single 220 mm disc
Brakes rear: Single 184 mm disc
Dimensions (L x W x H): 1.820 mm x 735 mm x 1,055 mm
Wheelbase: 1,255 mm
Seat height: 840 mm
Fuel capacity: 5.5 litres
Curb Mass: 69 kg

Kawasaki KX85 II Big Wheel

Engine type: Liquid-cooled, 2-stroke Single
Displacement: 84 cm³
Bore x stroke: 48.5 x 45.8 mm
Compression ratio: 10.0:1 (low speed); 9.2:1 (high speed)
Valve/Induction system: Reed valve
Fuel system Carburettor: Keihin PWK 28
Ignition: Digital CDI
Starting Primary: kick
Transmission: 6-speed, return
Frame type: Perimeter, high-tensile steel
Rake/Trail: 27° / 103 mm
Wheel travel front: 275 mm
Wheel travel rear: 275 mm
Tyre front: 70/100-19 42M
Tyre rear: 90/100-16 52M
Steering angle: left / right 45° / 45°
Suspension front: 36 mm upside-down telescopic fork, with 16-way compression damping
Suspension rear: Bottom-Link Uni-Trak with adjustable preload, 4-way compression damping and 20-way rebound damping
Brakes front: Single 220 mm disc
Brakes rear: Single 184 mm disc
Dimensions (L x W x H): 1,910 mm x 735 mm x 1,105 mm
Wheelbase: 1,290 mm
Seat height: 870 mm
Fuel capacity: 5.5 litres
Curb Mass: 71 kgass 69 kg

KX85 I - The bike that builds champions

From their first ride to lifting the trophy, legends choose KX - Created to dominate and built for winners, the KX65 and new KX85 are competition ready machines designed to encourage the green shoots of youth talent allowing it to blossom into full-blown race wins and Championship success.

ENGINE

Engine type: Liquid-cooled, 2-stroke Single with KIPS
Displacement: 84 cm³
Bore x stroke: 48.5 x 45.8 mm
Compression ratio: 10.9:1 (low speed); 9.0:1 (high speed)
Valve/Induction system: Piston Reed valve
Fuel system: Carburettor: Keihin PWK 28
Ignition: Digital CDI
Starting: Primary kick
Lubrication: Pre-mix (32:1)

FRAME

Frame type: Perimeter, high-tensile steel
Rake/Trail: 29° / 97 mm
Wheel travel, front: 275 mm
Wheel travel, rear: 275 mm
Tyre, front: 70/100-17 40M
Tyre, rear: 90/100-14 49M
Steering angle, left / right: 45° / 45°

TRANSMISSION

Transmission: 6-speed, return
Final Drive: Chain
Primary reduction ratio: 3.400 (68/20)
Gear ratios: 1st: 2.538 (33/13)
Gear ratios: 2nd: 1.875 (30/16)
Gear ratios: 3rd: 1.500 (27/18)
Gear ratios: 4th: 1.250 (25/20)
Gear ratios: 5th: 1.090 (24/22)
Gear ratios: 6th: 0.956 (22/23)
Final reduction ratio: 3.571 (50/14)
Clutch: Wet Multi Disc, manual

BRAKES

Brakes, front: Single 220 mm disc with dual-piston caliper
Brakes, rear: Single 184 mm disc with single-piston caliper

SUSPENSION

Suspension, front: 36 mm inverted telescopic fork with 20-way compression damping
Suspension, rear: Uni-Trak with adjustable preload, 24-way compression and 21-way rebound damping

DIMENSIONS

Dimensions (L x W x H): 1,830 mm x 765 mm x 1,100 mm
Wheelbase: 1,255 mm
Fuel capacity: 5 litres
Seat height: 830 mm
Curb Mass: 75 kg

TECHNICAL SPECIFICATIONS

Complies to EU emission limit

KX85 II - The bike that builds champions