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P.wheel FAQ | Product Q&A

Upgrade your regular bike to electric assist using your existing 18V tool batteries — zero extra battery cost!

1. Product Basics

Q1: What is P.wheel?
A: P.wheel is an electric assist conversion kit that turns your regular bicycle into an e-bike. The core feature is using your existing 18V tool batteries — no need to buy a dedicated battery.
Q2: What is included in the kit?
A: The kit includes: Motor rear wheel (pre-laced), Battery mount (water bottle cage position), Professional display, Waterproof wiring harness and accessories. Optional: Pre-installed freewheel + inner/outer tires.
Q3: How to choose the rear wheel?
A: Default is pre-laced wheel (spokes already installed). Options: Bare wheel — motor rim only for users with their own wheelset; Pre-install service — includes freewheel + tires, ready to mount upon arrival.
Q4: How to handle the battery?
A: Use your existing 18V tool batteries! Compatible brands: Makita (BL1850, BL1860, etc.), DeWalt, Bosch, WORX. Zero extra cost if you already own them.
Q5: What if I don't have 18V tool batteries?
A: If you don't have any, buy one Makita BL1850 (5.0Ah/180Wh) for about 300 RMB — it can also be used with your power tools, killing two birds with one stone.

2. Key Features

Q6: What are the biggest highlights?
A: Four core advantages: 1. Zero extra battery cost — use existing tool batteries; 2. Torque sensor — hub-integrated for precise assistance; 3. 10-minute installation — no bottom bracket removal, just swap wheel; 4. Professional display — power/cadence/heart rate/GPS/cloud sync, comparable to Garmin.
Q7: What does "precise assistance ratio" mean?
A: Simply put: "The harder you pedal, the more help you get." Human:assist ratio can reach 1:1. Every pedal stroke feels real assistance — no "empty pedaling".
Q8: How does it compare to cadence sensors?
Cadence SensorP.wheel Torque Sensor
Fast pedaling = full powerHard pedaling = more assistance
Fixed preset speedReal-time on-demand adjustment
Empty pedaling feelAssistance on every stroke
Jerky startSmooth and linear
Q9: What are the advantages of lightweight design?
A: Kit net weight 3kg, total ~4kg with two tool batteries. Adding just 4kg to a regular bike is barely noticeable compared to traditional e-bikes (15-25kg). Easy to remove/install for flexible riding.

3. Technical Specifications

Q10: What is the power and speed?
A: Continuous power: 250W | Peak power: 700W | Torque: 45Nm. Max assisted speed: ~25km/h (compliant with EU e-bike standards).
Q11: How many assist modes?
A: Three modes: ECO (energy-saving, 0.5:1 ratio), SPT (sport mode, 1:1 ratio), BST (BOOST mode, full power for climbs). Switch anytime on the display.
Q12: How professional is the display?
A: Pro-level display! Real-time: Cadence, power (W), speed (km/h), distance, battery level. Heart rate support with external strap. Built-in GPS for routes. Data sync to cloud via phone hotspot for analysis. Comparable to Garmin or high-end cycling computers.
Q13: What is the range?
A: With 180Wh battery, at 2.5-3.5Wh/km consumption, range is 51-72km. Batteries are swappable — theoretically unlimited range — swap when empty and keep riding.
Q14: How fast does it charge?
A: Supports 140W PD fast charging — 60% in 1 hour.
Q15: Is the battery safe? Any protections?
A: Tool batteries have UL/CE certification. Our product adds over-current, over-discharge, over-temperature protection circuits — safe and reliable.
Q16: Is it waterproof? Can I ride in rain?
A: IP65 waterproof rating. Motor, battery mount, and display use waterproof connectors — plug-and-play. Fine for light to moderate rain.
Q17: Is the motor noisy?
A: Brushless DC motor + FOC vector control algorithm — smooth and quiet. Almost no motor noise during riding.
Q18: How is the hill-climbing performance?
A: 700W peak + 45Nm torque. In BST mode, steep hills are easy. Torque sensor provides smooth and powerful climbing, unlike jerky cadence sensors.

4. Bike Compatibility

Q19: Will it fit my bike?
A: Suitable for mountain bikes, road bikes, city bikes if: Rear wheel is standard quick release or thru-axle (99% of bikes); Frame has space at rear dropout; Water bottle cage mount available for battery.
Q20: Brake requirements? Rim or disc?
A: Compatible with both rim brake and disc brake. Select wheel type when ordering.

5. Installation & Usage

Q21: Is installation complicated? Need to remove bottom bracket?
A: No bottom bracket removal needed! Torque sensor is integrated in the rear hub. Steps: 1. Swap rear wheel (motor wheel); 2. Mount battery at water bottle position; 3. Install display. Most users finish in 10 minutes.
Q22: What tools are needed?
A: Basic tools: 15mm wrench, screwdriver. No special tools required. We provide installation video and Chinese manual.
Q23: What if I can't install it?
A: Detailed video tutorial available (scan QR code). Or take it to a local bike shop for paid installation (~50-100 RMB).

6. Competitor Comparison

Q24: How does it compare to Swytch?
SwytchP.wheel
Sensor: CadenceTorque
Install: Remove bottom bracketJust swap wheel
Battery: Extra $149 purchaseUse existing tool batteries
Display: BasicPro-level power/HR
Price: $439$439
Q25: How does it compare to Skarper?
SkarperP.wheel
Price: €2999$439
Sensor: CadenceTorque
Battery: DedicatedUse existing tool batteries
Install: Remove bottom bracketJust swap wheel

7. Pricing, Purchase & Shipping

Q26: How much is it?
A: Retail price $439 USD (approx. 2200 RMB).
Q27: Where to buy? Payment methods?
A: Independent website coming soon. Supports PayPal, credit card. For China users: Alipay/WeChat (after site launch).
Q28: Shipping to which countries? Can it ship to China?
A: Worldwide shipping (including mainland China, Hong Kong, Taiwan). Mainland China: SF Express / Deppon (free shipping). Overseas: DHL / FedEx international express.
Q29: When will it ship?
A: Pre-orders accepted now. Expected batch shipping in Q2 2026. Pre-order gets priority.
Q30: Is there warranty?
A: Motor & controller: 2 years warranty. Sensor, housing, accessories: 1 year. Free repair/replacement for non-human damage.
Q31: How to handle repairs if something breaks?
A: For quality issues, free return for repair/replacement. Chinese support available: 228859286@qq.com
Q32: Can I return it?
A: 7-day no-reason return (if resaleable), 15-day exchange for quality issues.
Q33: Can it be registered/licensed?
A: Complies with EU CE (EN 15194) and US FCC (certification in progress). Note: E-bike compliance depends on the full bike. Check local regulations. Generally 250W / 25km/h is registrable in most EU countries.
Q34: What are the package dimensions?
A: Heavy-duty corrugated pizza box + 4 industrial corner protectors + handle. Size: 70×80×20 cm. Gross weight: 6.0 kg
Q35: What is the export HS code?
A: HS code 8714.99
Q36: How many units fit in a container?
A: 20ft container: approx. 460 units. 40ft high cube: approx. 1150 units.

Dealer & Wholesale FAQ

Welcome bicycle shops, mod shops, tool stores, and online sellers to partner with P.wheel!

Q39: Dealer/wholesale policy? Minimum order, discounts, samples?
We welcome bicycle shops, e-bike mod shops, tool stores, and e-commerce sellers as authorized dealers or wholesale partners.

• Minimum order: Recommended 5 sets for first order (mix models OK).
• Discount tiers: 5–20 sets → 20% off, 21–50 sets → 25% off, 51+ sets → negotiable 30%+ off.
• Sample policy: First partners can get 1 test sample at cost; fee deductible on first formal order (≥5 sets).

Contact: WhatsApp: +86-15902855685 / WhatsApp: +886-your-number / Email: server@p-wheel.com
We reply within 24 hours with quote, profit calculator, and agreement template.
Q40: Do you support OEM/private labeling/customization?
Yes! Small-batch OEM/private label for shops wanting their own branded kits.

• Minimum: 50 sets (phased delivery possible).
• Customizable: Packaging, logo, manual, white-label app, kit color, power tuning, etc.
• Lead time: ~45–60 days for first order.

Full Taiwan supply chain support with strict QC. Send requirements for free proposal.
Q41: What exclusive benefits do dealers get?
Authorized dealers receive:

• Exclusive backend access: Anonymized ride data to offer personalized guidance and boost repeats.
• Marketing kit: High-res photos, videos, templates, posters, social copy.
• Training: Free install videos + online/offline support (in-person in Taiwan possible).
• Priority: Faster production & after-sales (free warranty replacements).
• Regional protection: Exclusive territory based on scale.
• Margin: Suggested retail $450–550 USD, dealer gross 35–50%.
Q42: How to become a dealer? Process?
Simple 3 steps:

1. Contact us with info: store name, address, business type, estimated monthly sales.
2. We reply in 24h with agreement, quote, profit sheet.
3. Confirm → send sample → sign → first order → official dealer.

Low barriers — focus on sincerity and local market potential.
Q43: Notes for Europe/North America dealers (regs & certs)?
Product complies with CE/EN 15194 (EU pedelec standard) and supports Right-to-Repair (easy disassembly, reusable parts).

• Europe: Sell as conversion kit — no extra vehicle cert needed.
• North America: Meets UL 2849 system safety (battery relies on Makita/DeWalt cert).
• We provide EN/DE/FR manuals and compliance docs for Amazon/local filing.

Contact early for extra certs (e.g., UKCA).

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