Find the right 140/70 R17 66H tire for Supermoto and street-tuned bikes. This guide compares five top options, highlighting grip, stability, and warm-up behavior for riders who push lean angles and need predictable handling. Best for: riders who want high grip in dry and wet conditions, superb stability under hard braking, or a balance between performance and everyday usability.
| Product | Brand | Best For |
|---|---|---|
| Continental ContiAttack SM 2 Rear | Continental | High-Performance Supermoto grip with precise feedback |
| BELMONTE BIKES Rubber 140/70-17 Tubeless | BELMONTE BIKES | Heavy loads and stable street performance |
| MMG Motorcycle Tubeless Tire 140/70-17 | MMG | All-weather street performance |
| MICHELIN City Grip 2 Front/Rear Scooter Tire | MICHELIN | Longevity and all-season traction for commuting |
| IRC RX-01 Road Winner Rear Tire | IRC | Aggressive tread design with stability |
Continental ContiAttack SM 2 140/70R17 Rear
Brand: Continental. Features include Black Chili compound for superior traction and shorter warm-up, GripLimitFeedback for precise lean-angle feedback, and optimized stability for aggressive braking and acceleration. Best for riders seeking top-tier grip with reliable high-speed lean control in Supermoto or sport-oriented street riding. Limitation: data indicates peak performance after some initial warm-up; cold grip may be reduced compared to heat-cycled tires.
BELMONTE BIKES Rubber 140/70-17 Tubeless
Brand: BELMONTE BIKES. Features include a size 140/70-17 with 665 lbs max load and 33 PSI recommended pressure for balanced performance and longevity. Best for riders who need a sturdy, everyday tire capable of stable street handling and heavier loads. Caution: tubeless design means proper tubeless compatibility and rim fit are essential for optimal performance.
MMG Motorcycle Tubeless Tire 140/70-17
Brand: MMG. Features include a 140/70-17 rear with 112 MPH speed rating, max load 661 lbs, all-weather reliability, and a street-performance tread. Best for riders wanting predictable all-season performance and a resilient rear tire for daily commuting or weekend rides. Caution: some riders may prefer a tread pattern optimized for sportier dry-grip in low-heat conditions.
MICHELIN City Grip 2 140/70-14 Scooter Tire
Brand: MICHELIN. Features include silica-based compounds and shark tooth sipes for high grip in wet conditions, extended longevity for commuting, and ready-for-all-season performance. Best for riders prioritizing longevity and steady grip in varied weather. Limitation: designed for scooters and may be less suitable for aggressive Supermoto setups requiring larger cornering grip.
IRC RX-01 Road Winner Rear Tire 140/70-17
Brand: IRC. Features include an aggressive tread design and stronger casing for better stability. Best for riders seeking a balance of performance in varied road conditions with reliable stability at higher lean angles. Caution: aggressive tread may wear differently depending on surface and temperature, potentially impacting long-term grip on smooth, polished pavement.
Pirelli Sport Demon Sport Touring 140/70-17
Brand: Pirelli. Features include a front-oriented profile for improved handling and central sine-wave groove for effective water evacuation. Best for riders who want confident dry and wet handling with sport-touring capability. Limitation: back-to-back performance may rely on pairing with a compatible front tire to optimize overall handling balance.
Bridgestone Battlax Hypersport S22 140/70R17
Brand: Bridgestone. Features include enhanced dry and wet grip through front/rear compound optimization and a rear compound for improved wet performance using fine silica. Best for riders seeking a modern street sport tire with strong all-around performance. Limitation: designed to maximize sport handling; life and heat management may vary with riding style and heat cycles.
Buying Guide
What should you consider when choosing a 140/70 R17 66H tire for Supermoto or street riding?
- Rim and bike compatibility: Ensure your wheel and bike accept 140/70-17 tires with 66H load index and speed rating.
- Grip vs longevity: High-grip compounds (like Continental Black Chili) deliver better cornering but can wear faster than touring compounds. Balance your needs for track days vs daily commuting.
- All-weather performance: If you ride in rain or damp surfaces, look for tires with proven wet grip and water evacuation channels (silica-based compounds, tread patterns).
- Load capacity: For heavier bikes or riders, pick tires with robust load ratings (e.g., 665 lbs max load) to maintain stability under braking and acceleration.
- Tread design for riding style: Aggressive tread tends to improve leaning stability but may wear differently; consider your typical surface mix (dry pavement vs slick or wet).
- Tubeless vs tubed: Most modern 140/70-17 tires are tubeless; confirm rim compatibility and mounting requirements.
FAQ
- What does 140/70R17 mean?
- The 140 is the tire width in millimeters, 70 is the aspect ratio (height as a percentage of width), R indicates radial construction, and 17 is the rim diameter in inches.
- Is a 66H tire appropriate for Supermoto use?
- Yes, 66H is a common load and speed rating for 140/70-17 tires used on sport and Supermoto setups, offering a balance of load capacity and lean performance.
- Which tire is best for wet weather riding?
- Look for tires with silica-based compounds and tread designs optimized for water evacuation; Michelin City Grip 2 and ContiAttack SM 2 are examples with strong wet performance in their segments.
- Should I choose a tire with higher mileage or higher grip?
- Choose based on your priority. If you ride aggressively in corners or on a track, prioritize grip. If you commute daily, longevity and even wear may be more important.
- Can I mix front and rear brands?
- Mixing front and rear tires is possible but can alter handling. For best balanced behavior, pair tires designed for similar performance characteristics and intended riding environments.