Cfmoto S21
The Cfmoto S21 has a top speed of ~160 km/h (estimated), produces ~35 hp and weighs ~185 kg. Motoryk rates it 7/10.
The CFMoto S21 is a sport-naked motorcycle introduced by Chinese manufacturer CFMoto, representing their push into the mid-displacement performance segment. It is built around a parallel-twin engine platform shared with other CFMoto models, targeting younger riders seeking an aggressive streetfighter aesthetic at a competitive price point. The S21 reflects CFMoto's broader strategy of expanding globally with value-oriented performance bikes developed in partnership with KTM's parent company Pierer Mobility.
~35 hp
Power
~31 Nm
Torque
~185 kg
Weight
~160 km/h (estimated)
Top Speed
~4.5 L/100km (estimated real-world average)
Fuel
Naked
Body
Video Review
What Buyers Should Know
KTM-Derived Engine
The CFMoto S21 uses a 450cc single-cylinder engine developed in partnership with KTM, lending it proven European engineering DNA. This collaboration generally improves long-term reliability compared to purely domestic Chinese designs.
Watch Electrical Connections
Early CFMoto models across their lineup have shown minor issues with connector corrosion and wiring harness quality, so inspect electrical components carefully during pre-purchase checks. Keeping connections clean and treated can prevent most problems.
Budget-Friendly Entry Point
The S21 offers competitive pricing against Japanese and European rivals, making it attractive for newer riders, though CFMoto's resale value still trails established brands like Honda or Yamaha. Factor in a modest depreciation curve if you plan to sell within a few years.
Used Buyer Review
"Genuine budget performance bike, but buy near a dealer."
$5,500-$7,500 usedThe CFMoto S21 is one of those bikes that genuinely surprises you once you get past the badge snobbery. For the money, the 700cc parallel-twin punches respectably hard, and the clip-on ergonomics actually work for riders under six feet without destroying your wrists on longer hauls. Build quality on early examples was hit-or-miss — check the switchgear carefully and look for any corrosion around the exhaust headers, because some units developed rust surprisingly fast. Used examples are starting to trickle through at genuinely tempting prices, typically $1,000-2,000 below comparable Kawasaki Z7 territory. That gap exists for a reason though. Dealer support outside major cities remains patchy, and sourcing obscure crash replacement parts can turn a minor tip-over into a months-long headache. Always verify the service history exists and wasn't dealer-stamped by a cousin. If you're mechanically confident, ride regularly, and live near a CFMoto dealer, this is legitimately good value. If you're newer to bikes or need bulletproof reliability, the used premium on a Honda or Kawasaki is honestly worth paying.
Top 10 Accessories
Curated picks for the Cfmoto S21 — owned, ridden, recommended.
Common Problems
Start cold, listen for stumbling or hesitation at idle
Spin wheels by hand, check for uneven drag or binding
Check all dash lights, indicators, and USB ports work
Check chain slack, look for hooked sprocket teeth
✅Pre-Purchase Checklist
Decent budget bike, maintenance history matters most
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Cfmoto S21
Compare Cfmoto S21 Side-by-Side
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Cfmoto S21 vs Qj Motor Sv300
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Discussion
Frequently Asked Questions
What are common problems with the Cfmoto S21? +
Fuel injector clogging and rough idle: Start cold, listen for stumbling or hesitation at idle (moderate) | Brake caliper seizing from neglect: Spin wheels by hand, check for uneven drag or binding (moderate) | Electrical gremlins, dash flickering: Check all dash lights, indicators, and USB ports work (minor)
Is the Cfmoto S21 a good motorcycle? +
Genuine budget performance bike, but buy near a dealer. Rating: 7.0/10. Best for: Mechanically savvy riders wanting sporty budget performance. Avoid if: You need reliable dealer support everywhere you ride.
What is the horsepower of the Cfmoto S21? +
The Cfmoto S21 produces ~35 hp @ 8,000 rpm (estimated), with ~31 Nm @ 6,500 rpm (estimated) of torque. Top speed: ~160 km/h (estimated).
Is the Cfmoto S21 good for beginners? +
Yes — the Cfmoto S21 is a reasonable choice for new riders (35 hp is manageable), weighing 185 kg. Mechanically savvy riders wanting sporty budget performance
Is the Cfmoto S21 reliable? +
The Cfmoto S21 has no widely-reported critical reliability issues. 4 minor issues are documented — see the Common Problems section above.
Is the Cfmoto S21 good for daily use? +
Mechanically savvy riders wanting sporty budget performance Fuel: ~4.5 L/100km (estimated real-world average).
How fast is the Cfmoto S21? +
The Cfmoto S21 reaches a top speed of ~160 km/h (estimated), producing 35 hp at 185 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.
What gear should I buy for a Cfmoto S21? +
Motoryk has curated a Top 10 gear list specifically for the Cfmoto S21, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/cfmoto/s21/top10. Each pick is matched to this bike's spec.
