What category is the 2021 Derbi Senda X-Treme 50 SM?

General information
Year	2021

Engine and Transmission Specifications
Emission details	Euro 4
Clutch	Wet Multiplate
Transmission type	Chain (final drive)
Gearbox	6-speed
Cooling system	Liquid
Lubrication system	Oil pump
Ignition	CDI
Fuel system	Carburettor. 17.5 mm
Bore x Stroke	39.9 x 40.0 mm (1.6 x 1.6 inches)
Compression	11.5:1
Engine type	Single cylinder, two-stroke
Capacity:	50.0 ccm (3.05 cubic inches)

Category	Super motard
Model	Derbi Senda X-Treme 50 SM
Brakes, suspension, Frame and wheels
Rear brakes	Single disc
Diameter	260 mm (10.2 inches)
Front brakes	Single disc. Dual piston floating calliper
Rear tire	110/80-18
Front tire	80/90-21
Rear Suspension	Swingarm in high resistance steel. Hydraulic monoshock absorbe
Front Suspension	Telescopic hydraulic fork with Ã˜ 37 mm stanchions,
Frame type	Twin-tube steel frame
Physical measures and capacities
Oil capacity	1.00 litres (1.06 US quarts)
Reserve fuel capacity	1.00 litres (0.26 US gallons)
Fuel capacity	7.00 litres (1.85 US gallons)
Wheelbase	1365 mm (53.7 inches)
Overall width	830 mm (32.7 inches)
Overall length	2020 mm (79.5 inches)
Seat height	880 mm (34.6 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	99.0 kg (218.3 pounds)

Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Electrical	12V 4Ah battery
Starter	Kick
Color options	Black/Yellow, Blue/Red, Red/White

Performance Profile & Rider Fit

Best For

Track35%

City75%

Cornering70%

Daily Riding45%

Touring15%

Passenger15%

Rider Profile

Best For	This bike suits beginner and younger riders, including those on a learner-legal or moped-class license, who want a light, playful machine to build skills on.
Purpose	It's built for supermotard-style fun, flicking through city streets, tight backroads, and light urban stunting rather than any serious distance riding.
Rider Fit	Its tiny 99 kg dry weight and low-ish 860 mm seat height make it extremely manageable for smaller or less experienced riders to handle and pick up.
Character	A tiny two-stroke supermotard, it's buzzy, revvy, and eager to be thrashed, rewarding an aggressive, playful riding style over smooth cruising.
Not Ideal For	It's not for anyone wanting real highway speed, long-distance touring comfort, or a bike capable of carrying a passenger any real distance.

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

Rider Fit Visualizer

Your height

Inseam (optional)

Units

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Feet:

At 880mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with cannot reach comfortably on the 2021 Derbi Senda X-Treme 50 SM, with a relaxed knee angle of around 135 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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