Mondraker Sly RR Review

The SX from Bosch shows impressively that they shouldn't be limited to DIY and household products. The developers at Bosch are entering the race with their first Light Motor, the Performance SX. With 55 Nm of torque, the unit sits squarely between Fazua's Ride 60 and TQ's HPR 50. However, it delivers similar power values to the popular Full-Power sibling, the Powermotor CX, with up to 600 watts of assistance. However, the Bosch SX only delivers this power at a very high cadence. To feel the full power, one must pedal at a sporty 100 revolutions per minute. The startup behavior remains harmonious. The entire motor control is very natural. While in operation, the Performance SX is quieter than the Powermotor CX, but still louder than the sometimes whisper-quiet competition from Fazua or TQ. When descending, Bosch has managed to reduce rattling compared to the CX model, although it remains noticeably audible with the SX. Fans of XXL tours are greatly restricted by the Sly RR, because of its low range. The integrated battery gives developers constructive freedom when designing the frame. However, to charge it, the bike always has to be brought near an outlet.

A good chassis sits in rugged terrain and generates plenty of traction. That's exactly what the good Fox chassis in the Sly RR hits. Thanks to the solid power, the SRAM brakes can be counted on in the upper class segment. With four pistons and 200 millimeter rotors, Mondraker won't take any chances in that area. The components and the gears are less in the spotlight with an EMTB than with bikes without motor. Nevertheless, when we take a look we find out that here, good components are always used. When it comes to the geometry, Mondraker does not go completely crazy. The head tube angle and reach values were chosen with care. The result: A balanced riding behaviour with a good combination of playfulness and straight-line stability. For the good geometry, the developer team of Mondraker definitely deserves props. Such a knack for detail in geometry is rarely seen. The scale stays at 20,7 kg with this model. That makes the Sly RR one of the light Trailbikes.