The collaboration between Flyer and Panasonic has a long tradition. It is not surprising that they were the first supplier to install the new GX0 motor. At just 2.9 kilos, it is one of the lightest on the market and has plenty of power with 90 newton meters of torque. The 630 watt-hour battery is one of the most powerful. These figures speak for themselves.

Thomas Knecht - Head of Marketing Flyer AG - names the following three advantages of the bike:

"At just 2.9 kilograms, the motor is one of the lightest in its class and also delivers record levels of assistance with 90 Nm of torque. A characteristic feature of the new Uproc frames is the smart partial integration of the battery. This makes it easy to replace the battery and guarantees a secure fit even on rough terrain. The Uproc7 rides like a real mountain bike - just faster. The flat steering angle (65 degrees) and the optimized weight distribution ensure particularly high riding stability and the central riding position for the best climbing ability."

Equipment

The tested Uproc7 4.10 comes with the cheapest equipment of the four available models. The aluminum frame is designed for 27.5 Plus tires. The four models are fitted with grippy Magic Mary tires from Schwalbe in a width of 2.6 inches. The suspension comes from Rock Shox and the 11-speed drivetrain is a combination of Shimano's XT and SLX groupsets. Magura's MT-Trail-Sport brakes pack a punch, which is not unimportant for an e-bike with 160 millimetres of suspension travel.

Despite sufficient tire pressure, the "Sun Ringlé Düroc" wheelset caught a dent on the first descent on an exposed trail. Not really big, but still enough to make a tubeless setup impossible, as the air leaked out again at around 1 bar pressure. However, the concentricity was still impeccable.

The Flyer's own grips with soft "wings" are unconventional. What they are supposed to achieve is unclear, but they certainly don't improve the ergonomics. The feel is spongy and irritating. On the other hand, the built-in Supernova light is pleasing. The high-quality headlight has a high beam and a low beam that can be operated via the drive control. The maximum 450 lumen light output is ideal for gravel paths or as a second light to a powerful helmet light.

Flyer equips the bike with an in-house display. The large format is not for everyone.
However, it shows helpful information such as the current altitude, the wattage you have used, the temperature and much more.

Motor / battery

Panasonic GX0 / Flyer SIB-630
Power: 250 watts
Torque: 90 Newton meters
Battery capacity: 630 watt hours

Processing & details

The frame is rather high and so is the center of gravity. This is also reflected in the handling. The workmanship is of good quality and appears robust. The semi-integrated battery can be easily removed to the side. We were unable to check whether dirt collects in the gap of the lower mount in bad weather, as the weather was dry during the entire test period.

On the flat

The riding position is relaxed and upright, comfort comes before performance. However, the new Panasonic motor offers the latter. Thanks to the good acceleration values, you can quickly reach the 25-kilometer per hour limit. At this speed, the motor does not run quite as smoothly as those from Bosch or Shimano. The steering behavior is somewhat sluggish on flat terrain.

Up the mountain

The Uproc climbs quite well. On moderate terrain, the powerful motor really shoots up the mountain. The rear provides plenty of traction. The automatic mode selects the support appropriately in each case, only on very steep terrain can it not keep up with the competition. This is where the assistance sometimes breaks down. Where there is too little power in auto and standard mode, there is a bit too much in "High" mode. Fortunately, the Magic Mary tires bring the power to the ground to some extent. The problem is certainly not with the engine, but with the software.

Downhill

The Flyer shines downhill with precise steering behavior. The high front end is a little sluggish, but the short chainstays ensure agile handling overall. The bike sticks well to the ground and the suspension scores with a late but pleasant end progression. It doesn't sag after jumps and takes the fast, rough hits a little better than the slower, medium ones. On flowing as well as rough trails, it offers a lot of riding fun. The high weight of 24.7 kilos is only imperceptibly noticeable on the bike, for example when you have to lift it onto the train.

Conclusion

The latest addition from Flyer is a confident trail bike with plenty of smack under the butt. The Uproc7 4.10 is as versatile and reliable as a Swiss army knife. The solid componentry aims for durability, is well chosen and comes at a very fair price. Only the rim was not convincing.

Recommendation

If you are looking for a moderate, versatile e-bike at a fair price, you will find it with the Uproc7 4.10. Data lovers in particular will enjoy the flyer display. In the submenus, all kinds of information can be read off during the ride, from temperature to calorie consumption - nerd-worthy.

Specifications

Manufacturer/distribution

www.flyer-bikes.com

Test report published in issue 04/2019 of Ride magazine