HappyRun

HappyRun G300 SE Mid-Drive Electric Bike

★★★★☆4.7(203 reviews)
● In Stock — Ships within 24 hours
RRP $849
$424Save 50%

The HappyRun G300 SE is a mid-drive electric bike at a price where mid-drive motors are genuinely rare. Mid-drive applies power through existing gearing, multiplying torque at every ratio for superior hill climbing. Full suspension, hydraulic disc brakes, off-road geometry.

🚚 Free worldwide shipping
🛡 1-year manufacturer warranty
💸 30-day hassle-free returns
🇺🇸
US
3-7 days
🇬🇧
UK
3-5 days
🇦🇺
AU
5-10 days

Technical Specifications

MotorMid-drive brushless through gears
Mid-Drive AdvantageTorque multiplied at every gear ratio
Battery48V lithium removable
SuspensionFull suspension front & rear
BrakesHydraulic disc
TyresOff-road knobby
FrameAlloy off-road geometry

Customer Reviews

4.7
★★★★☆
203 verified reviews
Tyler A.2025-10-26
★★★★★
Mid-drive at this price is exceptional. Climbs trails my hub-motor bikes refused to attempt.
Clare M.2026-01-17
★★★★☆
Full suspension handles rough terrain properly. Mid-drive climbing delivers.
Omar H.2026-03-04
★★★★★
The mid-drive climbing difference on the hills near my home is dramatic, not subtle.

Frequently Asked Questions

Why is a mid-drive motor better for hill climbing than a hub motor?
A mid-drive motor sits at the bottom bracket and drives power through the bike's own gearing system. This means in first gear, the motor output is multiplied by the entire gear ratio — far more torque reaches the wheel than a hub motor can produce. On steep climbs, this is the difference between crawling up and spinning out. The G300 SE offers mid-drive capability at a price where hub motors are the standard.
What suspension does the HappyRun G300 SE have?
The G300 SE has full suspension — hydraulic disc brakes, front fork, and rear shock absorber. Full suspension on a mid-drive e-bike at this price point is rare. The off-road geometry keeps the bike stable on loose surfaces where rigid-frame bikes would feel unpredictable.
Is the HappyRun G300 SE road legal?
The G300 SE's motor power output and top speed vary by configuration. Check the specific settings for your region. In the US most configurations qualify as Class 2 or Class 3. In the UK the 250W EAPC limit means this bike is not road legal in standard form and is sold for off-road use.
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