Derbi Senda Xtreme 50 R - Specifications & Review

Senda Xtreme 50 R

Article Complete Info

Articleid596446
CategoryEnduro-offroad
MakeDerbi
ModelSenda Xtreme 50 R
Year2021

Chassis, Suspension, Brakes & Wheels

FrametypeTwin-tube steel
FrontbrakesSingle disc. Dual piston floating calliper
FrontsuspensionTelescopic hydraulic fork with Ø 37 mm stanchions
Fronttyre80/90-21
Frontwheeltravel170 mm (6.7 inches)
RearbrakesSingle disc
RearsuspensionSwingarm in high resistance steel. Hydraulic monoshock absorber.
Reartyre110/80-18
Rearwheeltravel200 mm (7.9 inches)

Engine & Transmission

Borexstroke39.9 x 40.0 mm (1.6 x 1.6 inches)
ClutchWet  multi-plate
Compression11.5:1
CoolingsystemLiquid
Displacement49.9 ccm (3.04 cubic inches)
EmissiondetailsEuro 4.
EnginedetailsSingle cylinder, two-stroke
FuelsystemCarburettor. DELL´ORTO PHVA 17.5 carburettor
Gearbox6-speed
IgnitionElectronic CDI
LubricationsystemOil Pump
TransmissiontypefinaldriveChain

Other Specifications

ColoroptionsRed/blue
Electrical12V 4Ah battery
StarterKick

Physical Measures & Capacities

Fuelcapacity7.00 litres (1.85 gallons)
Oilcapacity1.00 litres (1.06 US quarts)
Overallheight1222 mm (48.1 inches)
Overalllength2070 mm (81.5 inches)
Overallwidth830 mm (32.7 inches)
Reservefuelcapacity1.00 litres (0.26 gallons)
Seatheight880 mm (34.6 inches) If adjustable, lowest setting.
Weightincloilgasetc99.0 kg (218.3 pounds)

About Derbi

Country of Origin: Spain
Founder: Simeó Rabasa i Singla
Best Known For: Grand Prix-winning small-displacement two-strokes; GPR/ Senda series

Company History

Derbi began in postwar Catalonia as a bicycle repair shop that evolved into a manufacturer of ciclomotores—small, affordable motorized bicycles. Under Simeó Rabasa i Singla, the company pursued two parallel paths: practical commuters for Spain’s recovering economy and fiercely competitive racing machines that carried the brand’s red livery onto the world stage. Derbi’s 50cc and 125cc Grand Prix efforts yielded multiple world championships, proving that precision engineering and relentless development could overcome bigger budgets. On the street, Derbi’s scooters and geared small bikes—later the GPR sport models and Senda dual-sports—introduced generations of European riders to crisp two-stroke performance and agile chassis tuning. As emissions rules tightened, Derbi transitioned to cleaner engines and eventually joined the Piaggio Group, gaining access to broader resources while retaining its youthful identity. Historically, Derbi’s significance is disproportionate to displacement: it taught the industry to take “small” seriously, to build frames and suspensions worthy of skilled riders, and to covet the power-to-weight joy only a light machine can deliver. In club paddocks and on twisty mountain roads, Derbis earned reputations as rider’s bikes—responsive to input, eager to rev, and surprisingly durable in everyday use. For many Europeans, the first taste of true sport riding came on a Derbi, and the brand’s legacy lives in that formative grin.

Other Years

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