SEE THIS JUST RECEIVED from UK dealer
Engine
The COTA 300RR is fitted with a completely new engine, based on those used by Montesa Honda riders Eddie Karlsson and Oriol Noguera in Trials World Championship.
The increase in displacement to 289cc has been achieved by increasing the diameter of the piston (from 78mm to 80mm) and of the stroke (increased by 3 mm). There is a new crankshaft-rod, cylinder, piston assembly and crankcases.
The fuel pump is new, for the PGM-FI Electronic Fuel Injection system which allows more fuel flow and the ECU* has also been improved by including a new ignition mapping to optimize the performance of the new power plant.
* This only available on Full Power versions. All UK bikes are Full power versions.
One of the benefits of the PGM-FI electronic fuel injection system is that it auto adjusts to various meteorological conditions which when combined with the double ignition map gives the rider a fantastic advantage over standard models.
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The double ignition map is activated though a switch on the handlebar:-
Mode 1: for low grip conditions
Mode 2: for the maximum power.
And the ECU- throttle body isn’t sealed allowing riders to modify their ignition and injection maps through a PC. These changes give a stronger power curve in all ranges, but especially in the mid range, and maintain excellent rideability in the low range.
The engine braking has been significantly reduced by incorporating a crankcase gas decompression system as well as a thorough work on the electronics so that when closing the throttle the engine braking is minimized making the bike feel lighter and easy to control.
The clutch system has been modified to fit the increase in power, including the clutch pump which has been improved to be more responsive during racing.
The increase in displacement and the consequent increase in compression have also meant the inclusion of a new longer kick starter to ease the starting of the engine.
All these improvements in the performance of the engine mean that the Cota 300RR can deal with areas that would be harder for the Cota 4RT260 and the Race Replica.
Chassis
One of the main objectives whilst developing the COTA 300RR was to reduce the weight of the bike and make the overall feel lighter, more responsive and agile. The foot pegs have been moved 5mm lower and 5mm rearward which positions the rider’s weight towards the rear, making the front end feel lighter.
The COTA 300RR uses Michelin X11 tires which offer an excellent combination of traction, lightness and response. The wheels are fitted with lightweight hubs made of 7075 T6 aluminium, anodized in black and with the RR logo engraved with laser. The overall weight reduction is also achieved by the use of new DID aluminium tyre rims, lighter than the ones used in other models.
The COTA 300 RR, like the COTA 4RT260 and the Race Replica all use a light and robust aluminium frame and swingarm with a proven reliability and performance.
Suspension
To reduce the weight and improve performance the COTA 300RR features a TECH fork with light-weight aluminium tubes. The rear suspension is by Showa and uses new hydraulics and settings which make the bike feel lighter and more stable as well as providing better traction.
Brakes
The COTA 300RR features a new front brake with a 4 piston monobloc caliper to improve efficiency and power. The new Braktec brake and clutch pumps with red anodized covers increase both the response and performance of the bike.
High Quality Equipment
The quality of the equipment has been enhanced in all areas of the bike; there’s a new advanced battery-less ignition system, a bank angle sensor which switches off the ignition when the motorcycle is laying on the ground or when it is at an inclination superior to 65º for more than 7 seconds and the “man overboard” system using magnetic switch that stops the engine if the bike falls. The bike is fitted with an aluminium Renthal Fat Bar handlebar as standard.
Racing Kit parts
For the COTA 300RR there is also a highly exclusive set of carbon HRC parts comprising:-
Clutch cover protector
Exhaust pipe protector
Headlight cover
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Montesa Honda COTA 300RR 2016 Specifications (Full Power UK version)
ENGINE
Type Single, 4-stroke, 4 valves, SOHC, liquid cooled.
Displacement 289 cm3
Diameter x stroke 80 x 57.2 mm
Compression ratio 10.5: 1
Idle speed 1,800 min-1
Engine oil capacity 0.6 litres
Transmission oil capacity 0.57 litres
FUEL SYSTEM
Carburation Electronic fuel injection PGM-FI
Throttle body 28 mm
Air cleaner Viscous, foam element
Fuel tank capacity 1.9 litres
ELECTRICS
Ignition system Electronic, digital transistorized
Ignition timing 27° BTDC (idle) ~ 45° BTDC (10,000 min-1)
Sparkplug type CR6EH-9 (NGK)
Starting Kick to primary transmission
ACG output ACG 160 W
DRIVE TRAIN
Clutch Wet, multiplate with coil springs
Clutch operation Hydraulic
Transmission type 5-speed
Primary reduction 3.166 (57/18)
Gear ratios 1ª 2.800 (42/15)
2ª 2.384 (31/13)
3ª 2.000 (30/15)
4ª 1.272 (28/22)
5ª 0.814 (22/27)
Final reduction 4.100 (41/10)
Final drive Roller chain #520
CHASSIS
Frame type Diamond, aluminium twin spar
Dimensions (L×W×H) 2,016 × 830 × 1,130 mm
Wheelbase 1,321 mm
Caster angle 23°
Trail 63 mm
Seat height 650 mm
Foot pegs height 385 mm
Ground clearance 335 mm
Dry Weight 72.0 kg
SUSPENSION
Front 39 mm TECH telescopic fork with aluminium tubes, pre-load, compression and rebound adjustment. 167mm stroke.
Rear Pro-Link system with Showa shock, pre-load and rebound adjustment. 170 mm stroke.
WHEELS
Type Aluminium rims/ wire spokes