Canyon Neuron:ONfly CF7 Review: A Lightweight Bosch SX e-MTB That Rewards Spinning

Introduction

Canyon’s newest e-mountain bike, the Neuron:ONfly, takes a different route from the big-battery, full-power machines that have dominated the category. It is built around the Bosch SX drive system, a 400 Wh battery, and a lighter overall package that Canyon positions between nimble low-assist bikes and heavy full-power models. At launch the range includes four bikes, priced from just under €5,000 up to around €8,000, and the CF7 sits at the entry point.

Early rides on dry, dusty singletrack suggest the concept works. The bike stays maneuverable and playful while still offering meaningful assistance when the pedals are turning quickly. This review covers what the CF7 is, who it suits, and what to weigh up before buying.

Who the Canyon Neuron:ONfly CF7 Is For

This bike is aimed at riders who do not want the motor to do all of the work. Canyon describes it as a middle ground: significantly lighter than a typical full-power e-MTB, with roughly 7.5 lbs saved compared with a standard Bosch Performance CX motor and battery system, and close to 3 kg lighter than the CX-powered Neuron.

That makes it a good fit for riders who are comfortable spinning a higher cadence, want a proper workout, and still want help on the climbs. It also suits anyone who has found full-power e-MTBs heavy to lift, transport, and maneuver, but who does not want to give up assistance entirely.

Riders who prefer to pedal slowly and lean on torque to get up steep pitches may find a full-power bike more to their taste, because the SX motor’s character is different by design.

Main Strengths

The headline strength is how the bike carries its weight. With 140mm of travel front and rear and 29-inch wheels, the Neuron:ONfly behaves like a trail bike first and an e-bike second. It stays agile in tight, swooping singletrack and does not have the lethargic, passenger-like feel of a bigger, heavier machine.

Assistance is generous when the cadence is high. The SX motor can deliver up to 600 W of peak assist, the same peak figure quoted for the full-power Bosch Performance CX system, and the bike holds speed well out of corners.

There are four assist modes controlled from a handlebar remote, and the settings can be tuned in the Bosch app to match fitness, terrain, and riding style. Bosch’s proven reliability and the option of an additional battery pack for longer rides round out a practical package.

How the Bosch SX Motor Delivers Power

The SX unit is designed around cadence rather than raw torque. Peak torque is 55 Nm, lower than the 85 Nm of the Bosch CX, and the motor produces its best output in the 80 to 90 rpm range. Push beyond roughly 100 rpm and it delivers the same 600 W of peak assist as the CX motor. The CX, by contrast, gives its full assist at a much lower cadence, around 70 rpm.

In practice that means the Neuron:ONfly rewards riders who change down a gear, spin the pedals, and keep momentum. Instead of relying on torque alone, you unlock the power by pedalling faster, which feels closer to riding an unassisted mountain bike.

Because assistance builds with cadence, short and punchy climbs are best handled by gearing down and spinning rather than by mashing a big gear.

Ride Feel and Handling

On dry, dusty trails the bike feels confident and easy to move around. The geometry and low weight make it simple to shift body position, and the bike tracks well through narrow, flowing singletrack. It carries speed through corners and feels lively rather than planted and heavy.

The CF7 build weighs just over 20 kg in a size large, which is light for an e-mountain bike with this much travel and assistance. The result is a bike that stays fun on the descents without giving up climbing support.

Build, Weight, and Range Options

The CF7 sits at the entry point of the launch range. It uses a RockShox Pike fork, a Shimano Deore drivetrain, and SRAM Code R brakes. Travel is 140mm front and rear on 29-inch wheels, and there is no mullet or mixed-wheel option.

The battery is 400 Wh, smaller than the units fitted to full-power bikes, and an optional battery pack is available for riders who need more range. Canyon also continues to offer the regular Neuron and the CX-powered Neuron in its line-up, so the Neuron:ONfly is an addition to the range rather than a replacement.

Things to Consider Before Buying

The SX motor is audible when you spin it hard. It produces a low-pitched hum that is not overly intrusive, but it is noticeable and definitely not silent.

The motor and battery combination is smaller and lighter than a CX system, but it remains larger and heavier than some other lightweight drive systems on the market. Riders chasing the absolute lightest assisted trail bike will want to compare carefully.

Peak torque of 55 Nm is lower than a full-power motor, and the power only arrives if you are willing to spin. Riders who prefer to pedal slowly and let the motor carry them may find the assistance less immediate. The 400 Wh battery is also smaller than a full-power pack, and there is no mixed-wheel setup on offer.

Buying Advice

If you want an e-mountain bike that still feels like a mountain bike, the Neuron:ONfly CF7 is a compelling entry point into the range. It suits riders who spin, who want a workout, and who value maneuverability over raw torque and battery capacity.

Choose it if you ride flowing trails, want help on the climbs, and are happy to change gear and keep the cadence high. Look elsewhere if you want maximum torque at low cadence, the longest possible range from a single charge, or a mixed-wheel configuration.

Consider the higher-spec models in the range if you want upgraded components, and factor in the optional battery pack if long days out are part of your riding.

Conclusion

The Canyon Neuron:ONfly CF7 delivers on a clear idea: assistance that helps without taking over. The Bosch SX motor, 400 Wh battery, 140mm of travel, and 29-inch wheels add up to a lightweight, agile trail bike that stays fun on the descents and still supports you on the way up. Riders who enjoy spinning and want a more natural ride will find plenty to like here.