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Firefox Adventron 27.5 Electric Bike: ChooseMyBicycle.com Expert Review

Price: 60,000
Electric Bicycle Electric Bicycle
Firefox Adventron 27.5 Electric Bike Review

Snapshot

Technical Specifications

Firefox Adventron 27.5 Electric Bike: ChooseMyBicycle.com Expert Review

Firefox Adventron 27.5 Electric Bike Review

When you talk about the Performance Bicycle segment in India, there are only a few brands that come to mind and one of the leading ones is Firefox. It has maintained its position as one of the most aspirational brands with a great offering for adults who want more from their Bicycle. We got the opportunity to test ride the Firefox Adventron Electric Bicycle and here is what we thought.

Weight: 22.5 kgs (Including battery)

Category: Commuting/Fitness/Leisure

Firefox Adventron 27.5 Electric Bike: ChooseMyBicycle.com Expert Review The Firefox Adventron is an electric MTB with performance focused components and an aesthetic semi-integrated battery.
Overall Product
Rating
Performance
4.1
Design
3.9
Features
4
Value for Money
3.9

Things We Like

  • Stylish frame design with semi-integrated battery
  • Powerful Tektro Mechanical Disc brakes
  • Useful Suntour front suspension fork with lock-out

Things We Don't Like

  • Shifters could have seen an upgrade from SIS to a RapidFire EF41 or EF500 shifter at this price
Firefox Adventron 27.5 Electric Bike Frame

The Firefox Adventron is built on a full Alloy frame. This is the first and currently only available Electric Bicycle in the Firefox range. The frame geometry was standard with a downward slanting top tube which gave the rider that extra bit of standover clearance and the overall shape of the frame helped with having an upright posture which was perfect for fitness rides and commutes. The Suntour front suspension fork comes with an impressive 100mm travel which is more than enough to tackle the bumps and speed breakers on city roads. The suspension lock-out feature on this E-Bicycle helped in riding faster on flatter surfaces.

Firefox Adventron 27.5 Electric Bike Frame Well-built Alloy frame with a comfort focused ride geometry
Firefox Adventron 27.5 Electric Bike Design

The Adventron which I test rode came in a full Black primary colour on the frame with Yellow, Red and Silver as the secondary colours for the graphics. The suspension fork was Black in colour which was a good match to the full Black frame colour. The matte finish paint job was of great quality with a smooth premium finish to it. The semi-integrated battery is the best design feature on the Adventron. The seamless designed battery sits in the carved down tube and merges with it, without any outside protrusions. The front LED lights had a simple and neat design and useful safety additions on this E-Bicycle. This front LED light is powered by the E-Bicycle’s battery.

Firefox Adventron 27.5 Electric Bike Design The matte finish paint job was of great quality with a smooth premium finish to it
Firefox Adventron 27.5 Electric Bike Gearing

This Electric Bicycle comes with a 1x7-Speed drivetrain with a Shimano Altus rear derailleur. Whilst it is not a compulsion to have gears on an Electric Bicycle, it is useful when wanting to match the electric speed of the E-Bicycle with the pedalling cadence. It also helps when you run out of battery power during a ride as the gears help in controlling the pressure you want to put into pedalling. The 7-Speed Shimano Altus rear derailleur was smooth in shifting during the test ride. This Altus rear derailleur is controlled by Shimano’s SIS 7-Speed shifter.

Firefox Adventron 27.5 Electric Bike Gearing Useful and smooth shifting 1x7-Speed Shimano Altus drivetrain
Firefox Adventron 27.5 Electric Bike Battery and Motor

The Firefox Adventron Electric Bicycle runs on a rear hub BLDC 36V 250W rear hub motor. This motor is powered by an 8.7Ah Lithium-Ion battery. The battery is semi-integrated on the frame, on a carved bottom tube which makes it easy to install and remove. The Throttle on the right grip was easy to use and also brought out the fun factor on this E-bicycle. The 3 level Pedal Assist termed Low, Medium and High give three different levels of power assist from the battery for each pedal. The LCD controller on the left side of the handlebar bar has the On/Off button, Pedal Assist level change and a USB port on the side for charging your mobile phone. The maximum speed using battery power is 25Km/hr.

With 1 full charge this battery is capable of giving up to 50kms in Pedal Assist mode and 30-35kms if used only in Throttle mode. These mileages may differ with varied riding conditions, and rider weight. This battery takes 4.5-5 hours to charge from 0 to 100% with any normal Indian plug point. The charging point is on the battery pack itself and is easy to charge as this is a detachable battery.

Firefox Adventron 27.5 Electric Bike Battery and Motor Semi-integrated 8.7Ah Lithium-Ion battery with a rear hub motor
Firefox Adventron 27.5 Electric Bike Brakes and Steering

This Electric Bicycle’s stopping power is controlled by Tektro branded Mechanical Disc brakes at the front and rear. Both these brakes were powerful enough to get the bicycle to stop safely and quickly at 20-25 Km/hr.

The Alloy riser handlebar on this E-Bicycle along with an adjustable stem made it perfect for the rider to get a comfortable riding posture. The grip throttle on the right was smooth and easy to accelerate.

Firefox Adventron 27.5 Electric Bike Brakes and Steering Powerful and balanced Tektro Mechanical Disc brakes at the front and rear
Firefox Adventron 27.5 Electric Bike Wheels and Saddle

The 27.5” x 2.1” MTB tires on the Adventron were fast rolling on smooth and rough urban roads and were perfectly suited for an Electric Bicycle when riding at 25km/hr. The width and treads were perfect to give good traction on wet roads.

The Saddle has seen a considerable upgrade from Firefox’s non Electric Bicycles with this one having a padded cushion which makes it as good as having an external gel/foam seat cover. Rest assured there will be no saddle soreness with the Adventron.

Firefox Adventron 27.5 Electric Bike Wheels and Saddle Fast rolling Ralson 27.5” x 2.1” MTB tires

The Alloy frame is stylish in build with its semi-integrated frame design and smoothly welded tube edges. The 8.7Ah battery ensures extended range and the Throttle adds the fun quotient to the E-Bicycle riding experience. The powerful Tektro Mechanical Disc brakes and Ralson 27.5” tires makes it both safe and comfortable to ride at high speeds. Priced at Rs.60,000(as on 15th September 2021) the Firefox Adventron is an ideal choice for anyone looking to buy a Performance focused Electric Bicycle with a detachable battery.

Prices and Specifications/Components are subject to change by the brand, without due notice.

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