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Two Wheelers

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Karnaphuli represents Japan's Yamaha Motor Company and Excorts of India in Bangladesh as their sole distributor/importer and in addition has technical collaboration agreements with both Yamaha and Excorts for assembling and gradual manufacturing of motor cycles for subsequent  marketing in this territory. Piaggio of Italy have recent;y also appointed Karnaphuli as its sole distributor/importer in Bangalesh.

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Engine Epecification
Type 2 stroke, air cooled, single
Displacement 98 cc
Bore and Stroke 50.0 x 50.0 mm
Max. power 11.0PS  @7,500 rpm
Max. torque 1.07Kg-m @7,000 rpm
Lubrication Autolube
Carburetion VM 20
Ignition CDI
Starter system Kick
Fuel tank capacity 10.5 lt.
Transmission 4-speed

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Model: RX100

Chasis Specification

Overall length 2,040 mm
Overall width 740 mm
Overall height 1,050 mm
Wheelbase 1,240 mm
Dry weight 99 Kg
Suspention (Front) Telescopic, oil damped
Suspention (Rear) Coil spring, oil damped
Brakes (Front) Drum
Brakes (Rear) Drum
Tyres (Front) 2.50-18-4PR
Tyres (Rear) 2.75-18-6PR


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Model: Yamaha RX-S

Chasis Specification

Starting Primary Kick
Fuel tank capacity 9.0 L
Oil capacity 1.3 L
Overall length 1,950 mm
Overall width 745 mm
Overall height 1,025 mm
Seat height 780 mm
Wheelbase 1,240 mm
Ground clearance 155 mm
Dry weight 93 Kg
Suspention (Front) Telescopic forks
Suspention (Rear) Swing arm
Brakes (Front) Drum
Brakes (Rear) Drum
Tyres (Front) 2.50-18-4PR
Tyres (Rear) 2.75-18-4PR
Engine Specification
Type 2 stroke, Torque Induction, single
Displacement 115 cc
Bore and Stroke 54.0 x 50 mm
Compression ratio 6.6:1
Max. power 15.5PS @8,500rpm
Max. torque 1.35Kg-m@8,000 rpm
Lubrication Autolube
Ignition CDI
Transmission 5-speed

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Engine Specification
Type 2 stroke, rotary disc value, single
Displacement 97 cc
Bore and Stroke 52.0 x 45.6 mm
Compression ratio 6.5:1
Max. power 8.7PS (@7,00rpm)
Max. torque 0.86Kg-m(@6,500 rpm)
Lubrication Autolube
Carburetion VM 20
Ignition CDI
Starter system Kick
Fuel tank capacity 8.6 lt.
Oil tank capacity 1.6 lt.
Transmission 4-speed
Final transmission Chain drive

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Model: YB100

Chasis Specification

Overall length 1,900 mm
Overall width 785 mm
Overall height 1,020 mm
Seat height 785 mm
Wheelbase 1,190 mm
Min.ground clearance 140 mm
Dry weight 85 Kg
Suspention (Front) Telescopic fork
Suspention (Rear) Swing arm
Brakes (Front) Drum
Brakes (Rear) Drum
Tyres (Front) 2.50-18-4PR
Tyres (Rear) 2.50-18-4PR


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Model: YB50

Chasis Specification

Overall length 1,795 mm
Overall width 720 mm
Overall height 1,030 mm
Seat height 760 mm
Wheelbase 1,165 mm
Min. ground clearance 120 mm
Dry weight 71 Kg
Suspention (Front) Telescopic fork
Suspention (Rear) Swing arm
Brakes (Front) Drum
Brakes (Rear) Drum
Tyres (Front) 2.25-17-4PR
Tyres (Rear) 2.25-17-4PR
Engine Specification
Engine type Two-cycle, air-cooled rotary valve
Displacement 49 cc
Maximum output 4.8 ps / 7,000 rpm
Maximum torque 0.52Kg-m /  6,000 rpm
Maximum speed 80 km / h
Secondary reduction ratio 39:14:00
Caster 26°30’
Trail 75 mm
Carburetion VM 16
Ignition system CDI
Starter system Kick start
Oil type Yamaha Autolube Oil
Fuel tank capacity 8.0 Q
Oil tank capacity 1.6 Q

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