YajingGlass Mountain Bike 12 Magnets Ebike Assistant Sensors Speed Sensor Pedal Assist PAS System: Easy installation on mountain bikes
Available Options
12 Magnets Black
Joom
$9.99
Available to order
Picture this: you're halfway up a brutal climb, legs burning, and your ebike's motor cuts out. That's the kind of headache this 12-magnet PAS sensor aims to solve. It's the brain behind the brawn, translating every pedal stroke into smooth, seamless motor assistance. With a dozen magnets in the mix, it's hyper-responsive—no more lag or jerky power delivery. That precision isn't just about comfort; it's a battery-saver, squeezing extra miles out of each charge by matching effort to terrain. For mountain bikers, that reliability is gold when trails turn gnarly. Installation? A cinch for the weekend tinkerer, no shop visit required. Think of it as the upgrade that turns a grueling grind into a graceful glide, rain or shine, thanks to its weather-proof build. In short, it's the unsung hero that makes every ride feel effortless.
- 12 magnets for accurate speed sensing
- Pedal Assist System (PAS) compatibility
- Enhances ebike performance and efficiency
- Durable and weather-resistant design
- Easy installation on mountain bikes
General specs
- Brand: YajingGlass
- Seller: Joom
- Magnet Count: 12
- Compatibility: Mountain bikes, Ebikes with PAS
- Installation: Easy to install
- Function: Speed sensing, Pedal assist activation
- Durability: Weather-resistant
- First listed by seller: 8/24/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$9.99
Last price update: 9/1/25
Available to order
Shipping options
Delivery to 
United States
United States
Unavailable
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Mountain Bike 12 Magnets Ebike Assistant Sensors Speed Sensor Pedal Assist PAS System
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| Brand | YajingGlass | Butterflies Worked | Three Degrees | Good Life | Fishine | Sport2ZY |
| Model | E bike PAS System Assistant Speed Sensor | |||||
| Color | ||||||
| Rating |
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| Price | $9.99 | $6.96 | $6.86 | $6.55 | $7.58 | $17.04 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 30, 2025 | August 26, 2025 | August 27, 2025 | August 27, 2025 | August 30, 2025 | August 12, 2025 |
| Compatibility | Mountain bikes, Ebikes with PAS | Electric bicycles, PAS systems | 5, 8, or 12 magnet setups | 5/8/12 configurations | Most electric bikes | Electric Bikes |
| Installation | Easy to install | DIY mountable | Easy | Easy | Easy | |
Mountain Bike 12 Magnets Ebike Assistant Sensors Speed Sensor Pedal Assist PAS System
$9.99
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Jacob J.
Victoria, BC
September 1, 2025
Problem my old setup had motor cutting out on climbs legs burning Solution installed this sensor and now its hyper responsive translates pedaling into smooth power no headaches Takeaway makes every ride feel effortless a real upgrade for mountain biking trails
- Pros: Super responsive to every pedal stroke making assistance smooth and seamless no lag or jerky power delivery saves battery by matching effort to terrain easy to install myself no shop needed weather proof build works rain or shine solid value
- Cons: None from what I feel after using it