The lightweight box-section perimeter frame is made from high-tensile steel for exceptional rigidity and strength. The narrow profile contributes to an easier rider grip and smoother movement on the bike. Working together, the highly capable suspension and lightweight chassis deliver handling that exudes confidence.
The KLX140R L features larger wheels (F19”, R16”), taller seat height (800 mm) and higher 255 mm ground clearance.
Front and rear disc brakes provide strong progressive stopping power. The ø220 mm front petal disc with a dual-piston caliper is complemented by a ø186 mm rear petal disc with single-piston caliper, inspiring confidence on the trails.
The high-revving, 144 cc, air-cooled SOHC 4-stroke Single easily starts with the push of a button. The air-cooled engine eliminates the need for radiators while keeping the chassis slim and lightweight. The 5-speed transmission with manual clutch delivers smooth shifting and acceleration.
| Engine Type | Air-cooled, 4-stroke, single-cylinder |
|---|---|
| Compression ratio | 9.5:1 |
| Valve system | SOHC, 2 valves |
| Bore x stroke | 58.0 x 54.4 mm |
| Displacement | 144 cm³ |
| Fuel System | Carburettor |
| Lubrication | Forced lubrication, wet sump |
| Starting system | Electric |
| Ignition | DC-CDI |
| Transmission | 5-speed, return shift |
|---|---|
| Clutch | Wet, multi disc |
| Primary reduction ratio | 2.880 (72/25) |
| Gear ratios 1st | 2.667 (40/15) |
| Gear ratios 2nd | 1.895 (36/19) |
| Gear ratios 3rd | 1.474 (28/19) |
| Gear ratios 4th | 1.182 (26/22) |
| Gear ratios 5th | 1.000 (24/24) |
| Final drive | Chain |
| Final reduction ratio | 3.571 (50/14) |
| Frame type | Tubular, semi-double cradle |
|---|---|
| Rake | 27.0 ° |
| Trail | 85 mm |
| Wheel travel front | 180 mm |
| Wheel travel rear | 180 mm |
| Tyre, front | 70/100-17 40M |
| Tyre, rear | 90/100-14 49M |
| L x W x H | 1,820 x 790 x 1,050 mm |
| Steering angle L/R | 41° / 41° |
| Wheel base | 1,260 mm |
| Ground clearance | 235 mm |
| Fuel capacity | 5.8 litres |
| Seat height | 780 mm |
| Curb mass | 93 kg |
| Estimated dry weight** | 87 kg |
| Front brake type | Single disc |
|---|---|
| Front brake diameter | Ø 192 mm |
| Front brake caliper type | Dual-piston |
| Rear brake type | Single disc |
| Rear brake diameter | Ø 150 mm |
| Rear brake caliper type | Single-piston |
| Front suspension type | Telescopic fork |
| Rear suspension type | Uni-Trak swingarm |
