HM Cota 4RT - 2010 Specifications and Reviews

The 2010 HM Cota 4RT is a lightweight trial motorcycle designed for riders seeking technical off-road competition and training. Powered by a 249cc liquid-cooled four-stroke engine with fuel injection, it excels in navigating extreme terrain and obstacles. Known for its nimble handling and reliability, this machine is ideal for trial enthusiasts and professional competitors.

2010
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General information

CategoryTrial
Year2010
ModelHM Cota 4RT

Engine and Transmission Specifications

ClutchMulitplate in oil bath
Transmission type,final driveChain
Gearbox5-speed
Cooling systemLiquid
IgnitionCDI
Fuel controlSOHC
Fuel systemInjection. PGM-FI
Valves per cylinder4
Bore x stroke76.5 x 54.2 mm (3.0 x 2.1 inches)
Compression10.5:1
Engine typeSingle cylinder, four-stroke
Capacity:249.10 ccm (15.20 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter150 mm (5.9 inches)
Rear brakesSingle disc
Front brakes diameter185 mm (7.3 inches)
Front brakesSingle disc
Rear tyre dimensions4.00-18
Front tyre dimensions2.75-21
Rear suspension travel170 mm (6.7 inches)
Rear suspensionPro-link
Front suspension travel175 mm (6.9 inches)
Front suspensionShowa

Physical measures and capacities

Fuel capacity2.00 litres (0.53 gallons)
Wheelbase1,321 mm (52.0 inches)
Ground clearance335 mm (13.2 inches)
Overall width830 mm (32.7 inches)
Overall length2,016 mm (79.4 inches)
Overall height1,140 mm (44.9 inches)
Seat height650 mm (25.6 inches) If adjustable, lowest setting.
Dry weight73.8 kg (162.7 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsBlack, red
StarterKick

Performance Profile & Rider Fit

Best For

Track10%
City15%
Cornering60%
Daily Riding10%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a specialist machine best suited to riders with some trials or technical off-road experience, though beginners keen on learning trials skills can also start here under guidance.
PurposeBuilt purely for competitive and recreational trials riding, focused on tackling obstacles, steep and technical terrain at very low speeds rather than covering distance.
Rider FitIts extremely light dry weight and low seat height make it very manageable physically, but trials riding demands strong core balance, leg strength, and stamina for standing and maneuvering.
CharacterA featherweight, razor-sharp handling bike with a torquey low-end engine tuned for control and balance rather than outright speed.
Not Ideal ForThis is not the bike for riders wanting a comfortable seat, highway speed, luggage capacity, or a passenger-friendly ride.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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