The 3T Exploro Racemax Boost E-Bike combines gravel versatility with e-bike efficiency, featuring a lightweight carbon frame, Boost hub spacing for stability, and compatibility with 45mm tires. Its Fazua motor system delivers seamless pedal assistance, while aerodynamic tube shapes optimize speed. Designed for mixed-terrain performance, it balances endurance geometry with cutting-edge tech for road and off-road adventures.
How Does the Design and Geometry Enhance Performance?
The Racemax Boost uses a “High-Speed Gravel” geometry with a lower bottom bracket and longer wheelbase for stability on rough terrain. Its aerodynamic carbon frame reduces drag, while the Boost 148x12mm rear spacing improves wheel stiffness and tire clearance. The design prioritizes power transfer for both manual pedaling and motor-assisted rides.
What Motor and Battery System Does It Use?
3T integrates the Fazua Ride 60 motor, offering 60 Nm torque and a 430Wh battery. The system supports up to 400% assistance with a “Lightweight Mode” for minimal resistance when riding unassisted. The modular battery slides into the downtube, maintaining a sleek profile and enabling quick swaps for extended range.
The Fazua system employs a proprietary torque sensor that responds to pedaling input within milliseconds, creating a natural riding feel. Riders can choose between three assistance profiles via the handlebar-mounted controller: Eco (150% assist), Trail (250%), and Boost (400%). A thermal management system prevents overheating during sustained climbs, while regenerative braking recovers energy on descents. The battery fully charges in 2.5 hours using a 4A fast charger, and a 10% emergency charge provides 8-12 miles of range in 15 minutes.
| Assist Mode | Max Speed | Range Estimate |
|---|---|---|
| Eco | 20 mph | 110-120 miles |
| Trail | 28 mph | 70-80 miles |
| Boost | 28 mph | 50-60 miles |
Which Terrain Types Is the Exploro Racemax Boost Best Suited For?
The bike excels on gravel, dirt paths, and mixed surfaces due to its 45mm tire clearance and compliant frame. The geometry stabilizes descents on technical trails while remaining efficient on paved roads. Its motor assist makes it ideal for long-distance bikepacking or hilly commutes where variable terrain demands adaptability.
How Does It Compare to Traditional Gravel Bikes?
Unlike standard gravel bikes, the Racemax Boost integrates motor assistance without compromising frame stiffness. The Boost hub spacing allows wider tires than most competitors, and the Fazua system adds just 4.3 kg compared to non-e-bikes. It retains the snappy feel of a race bike but extends range and climbing capability via pedal assist.
What Customization Options Are Available?
Riders can choose between SRAM AXS or Shimano GRX Di2 electronic drivetrains, multiple wheel sets (carbon or alloy), and tire widths from 28mm to 45mm. The frame supports both 1x and 2x chainring setups, and the cockpit can be tailored with 3T’s proprietary aerobars or ergonomic grips for touring or racing preferences.
The Exploro Racemax Boost offers six frame sizes with stack/reach measurements optimized for aggressive or upright positions. Custom paint schemes can be ordered through 3T’s Project X program, including metallic finishes and topographic map designs. For commuters, accessory mounts support racks, fenders, and three water bottle cages. The modular cockpit system accommodates standard or flared handlebars from 40cm to 46cm widths, with internal routing for clean cable management.
| Component | Options |
|---|---|
| Drivetrain | SRAM AXS XPLR, Shimano GRX 815 Di2 |
| Wheels | Carbon 35mm, Alloy 25mm, Gravel-specific |
| Tires | 28-45mm (tubeless ready) |
| Cockpit | Aero bars, Ergo grips, Adjustable stem |
Is the 3T Exploro Racemax Boost Eco-Friendly?
3T uses recycled carbon fiber in frame production and partners with Fazua, whose motors are 90% recyclable. The modular battery design reduces waste, as individual components can be replaced instead of discarding the entire system. The company also participates in carbon offset programs for shipping.
What Smart Tech Integrations Does It Offer?
The bike pairs with the Fazua Rider app for real-time assistance tuning, route tracking, and battery management. Optional Garmin or Wahoo mounts sync with GPS units to display motor output data. Integrated lights powered by the main battery and anti-theft GPS tracking are available as add-ons.
“3T’s Exploro Racemax Boost redefines e-gravel bikes by prioritizing weight savings and ride quality,” says a cycling tech engineer. “The Fazua system’s natural pedal feel avoids the ‘robotic’ assistance of heavier motors, while the frame’s compliance handles chatter without flex. It’s a benchmark for riders who refuse to sacrifice performance for electrification.”
FAQs
- Can the Fazua motor be removed entirely?
- Yes, the motor and battery can be detached, reducing the bike’s weight by 4.3 kg for unassisted rides.
- What’s the max range on a single charge?
- Depending on assist mode, expect 50-120 miles. Eco mode extends range, while Boost drains the battery faster.
- Does it support tubeless tires?
- All 3T Exploro Racemax Boost wheels come tubeless-ready, and the frame is optimized for sealant compatibility.