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The LIVALL PikaBoost 2 is a rear-mounted friction-drive kit that adds electric assistance to a compatible bicycle. LIVALL says it can recover energy while coasting downhill or pedaling in Workout Mode; that is a manufacturer description, not independently verified evidence of a particular energy gain or real-world range.
How the PikaBoost 2’s energy recovery is supposed to work
Unlike a hub motor, the PikaBoost 2 drives the bicycle through a roller that presses against the tire. LIVALL describes its Powerful Edition as recovering kinetic energy while coasting downhill or while pedaling in Workout Mode, then converting that energy into electricity. In Workout Mode, the motor adds resistance as you pedal.
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LIVALL PikaBoost 2 E-Bike Conversion Kit Rear Wheel Pedal Assist System | $439.99 | Buy on Amazon |
LIVALL advertises approximately 100 W at around 25 km/h and says Workout Mode typically generates 1–3% battery per kilometre. The company qualifies the Workout Mode figure as dependent on terrain, bicycle and riding habits. Neither figure should be treated as an independent measurement or a guaranteed charging rate.
No independent controlled test validating the PikaBoost 2’s energy recovery or advertised maximum range is established by the available product information. The recovery feature is best understood as a vendor claim about how the system operates, not proof that it will materially extend every ride.
#1 Best Overall
- Note: Use a 65W USB-C charger (not include). Compatible only with round seatposts (25-35mm). Check size before installation. Not suitable for children's bicycles, This product is a pedal-assist accessory only and is not a complete electric bike
- Quick & Tool-Free Installation, No Complex Wiring: Our PikaBoost 2 electric bike conversion kit installs firmly on bike rear wheel in minutes without extra messy wires. You can freely switch between pedal assist mode and original cycling state without removing the whole unit, ideal for upgrading your regular road bike into an e-bike effortlessly. Compatible with round seat posts from 25mm to 35mm; please check your bike size before purchase
- Large 220Wh Battery & Stable Long Riding Range: Equipped with built-in 220Wh lithium battery with professional multi-layer BMS battery management system for full safety protection. Under ideal riding conditions, this e-bike kit supports max riding distance up to 70km (43 miles). We also have 158Wh version for your option for daily short commuting
- Multi-Safety Protection & Anti-Tilt Emergency SOS Design: Durable V-shaped anti-slip tire ensures long service life of 3000-5000km. Built-in gyroscope sensor automatically cuts off power when tilting over 30° to prevent tipping; it will trigger SOS alert once tilt angle exceeds 60°, greatly improving riding safety on slippery roads and sharp corners
- Smart APP Connection & 3 Adjustable Assist Modes: Connect through the mobile app for automatic setup and calibration. Riders can switch between 3 assist modes (Assist Mode, Cruise Mode, Workout Mode), create riding groups with friends, and access remote troubleshooting features
Will PikaBoost 2 fit your bicycle?
Fit is not determined by wheel diameter alone. LIVALL’s product FAQ says, “Compatibility depends on the seatpost, tire, frame, rear rack, fender, and suspension—not wheel size alone.” Check the specific bicycle and the exact kit edition before buying.
- Seatpost: LIVALL support specifies a round seatpost diameter of 25–35 mm.
- Tire: Support specifies a width of 25–65 mm. LIVALL’s product page also gives a typical outer tire diameter range of 16–29 inches; this is an additional check, not a substitute for checking width and clearances.
- Clearance and mounting: Assess space around the seatpost, frame, rear rack and fender, and whether the roller can sit correctly against the tire.
- Suspension: LIVALL advises against rear-suspension bicycles because suspension movement can make the rear mounting unstable and may cause the unit to fall or damage rigid connection points.
The device weighs about 3 kg, according to LIVALL Support’s 2025 specifications. Its support documentation lists 500 W peak power, while noting output is adjusted according to riding mode, road conditions and other factors.
How to choose among the listed editions
The US product listing describes three packages. Contents and availability can change, so compare the seller’s current listing with what is included in the box.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstall| Edition | Listed contents | Modes and control |
|---|---|---|
| Lite Edition | 158 Wh unit and installation pack | Assist Mode only; no remote |
| Lite Bundle | 158 Wh unit, 220 Wh battery and installation pack | Multiple modes; no remote |
| Powerful Edition | 220 Wh unit, remote and installation pack | Multiple modes; remote included |
LIVALL describes Assist, Cruise, Workout and Standby modes for the Powerful Edition. The remote switches between Cruise and Assist; LIVALL says the app is needed to change other modes. Assistance is described as activating once the bicycle reaches 5 km/h, so it may provide less help when starting uphill from a stop.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What range can you expect?
LIVALL advertises up to 70 km (43 miles) with the 220 Wh battery. The product page says actual range varies with the rider, hills and mode; LIVALL support also identifies temperature, tire, assistance level and riding conditions as factors. “Up to” is a best-case manufacturer claim, not a promise of that distance on a particular route.
For a practical estimate, consider your route, the assistance mode you intend to use, tire condition and the temperature, and leave margin rather than planning around the advertised maximum. The cited product information does not establish an independently measured range for a representative rider or route.
Install and check the friction drive before riding
Use LIVALL’s current installation guide and user manual for the relevant edition. Because the motor transfers force through tire contact, correct roller alignment and a secure clamp matter to operation as well as safety.
- Confirm the bicycle meets the kit’s seatpost and tire requirements, with adequate clearance around the frame, rack and fender.
- Mount the unit according to the current manual and tighten the clamp securely.
- Center the drive roller on the tire and check that it contacts correctly.
- Check for rubbing and confirm the assembly remains secure. If the clamp is loose, the roller is off-center or anything rubs, do not ride; correct the installation first.
LIVALL’s manual says conversion-kit rules vary by jurisdiction and puts responsibility for compliance on the rider. Before using the kit on public roads, check the local rules for motor power, assisted speed and e-bike classification; the product’s stated specifications do not by themselves determine whether a converted bicycle is legal where you ride.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
