Mondraker Sly RR Review

  • 6999 €
  • Aluminium
  • Bosch SX
  • 160 mm
  • 400 WH
  • 150 mm
  • 2025
  • 29"
  • 20,7 kg
Spanish eMTBs are always stylish. This also applies to the Sly RR. You can't tell at first glance that this is an aluminum bike; the look of the smoothed welds is almost indistinguishable from that of a carbon bike. With the Sly RR, there's finally an affordable alternative to the Mondraker Neat, which is likely to exceed most e-bikers' budget. In terms of rear suspension and geometry, this bike relies on similar features as the exorbitantly priced high-end version. The 160 mm travel at the fork and the 150 mm at the rear are identical to the Mondraker Neat.
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.

At a glance

The most importanten ratings of the Mondraker Sly RR in comparison to the competitor bikes of following categorie: (7000) .

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.

Value for money

If you are keen on value for money, this is your chart. It shows you at a glance how much bike you get for 6999 €.

Conclusion


Expirience with the Mondraker Sly RR

The Sly RR is clearly strong in uphill riding. Even though other bikes might shine more in the a, this one does not disappoint: With a, there's nothing stopping the uphill flow.
Ludwig Döhl - emtb-test.com
Mondraker Sly RR Review
Ludwig Döhl
Bike enthusiast and founder of emtb-test.com

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technical Details

Je steiler der Winkel des Sitzrohrs ist, desto effizienter können Sie in die Pedale treten.

SIZE XXS XS S M L XL XXL
Sizing of Manufacturer
-
-
s
m
m/l
l
-
Wheelsize
-
-
29
29
29
29
29
Stack
-
-
633
633
642
651
660
Reach
-
-
440
460
480
500
520
Top Tube Length
-
-
595
615
635
660
685
Seat Tube Length
-
-
380
410
435
460
490
Seat Tube Angle
-
-
77
77
77
77
77
Head Tube Length
-
-
120
120
130
140
150
Head Tube Angle
-
-
64,5
64,5
64,5
64,5
64,5
Bottom Bracket Drop
-
-
22
22
22
22
22
Bottom Bracket Height (absolut)
-
-
350
350
350
350
350
Chainstay Length
-
-
455
455
455
455
455
Wheelbase
-
-
1225
1250
1265
1290
1315
Standover Height
-
-
-
-
-
-
-
  • Motor Bosch SX
  • Display Purion 400
  • Battery 400
  • Frame 6061 Alloy Stealth Evo, hydroformed tubing, Updated Zero Suspension System, 150mm travel, Forward Geometry, internal & removable battery, Boost 12x148mm rear axle, tapered head tube, one-piece Monoblock upper link, HHG internal cable routing, MAX capacity
  • Frame Material Aluminium
  • Fork Fox 36 29 Float Performance GRIP, 160mm, 3 Position, tapered steerer tube, Boost 15x110mm axle, offset 44mm. Settings: sweep adjust compression, low-speed rebound, air preload
  • Spring Unit air
  • Remote-Lockout yes
  • Damper Fox Float X Performance EVOL, 185x55mm. Settings: 2-position compression (Open/Firm), rebound, air preload. Trunnion top mount, 30x8mm bottom bushings
  • Gearrange 520%
  • Drivetrain 12
  • Gear Lever Sram Eagle AXS Pod MMX, 12s
  • Rear Derailleur Sram GX Eagle AXS T-Type, 12s
  • Crank E.13 Helix Core E*Spec Plus, All sizes: 160mm
  • Cassette Sram XS-1275, 10-52T, T-Type, 12s
  • Chain Sram GX Eagle T-Type, 12s, Powerlock
  • Brake Set Sram Code Bronze Stealth, oversized 4-piston caliper, Centerline 200mm IS 6 bolts one-piece rotor, steel-backed metal sintered pads
  • Brake Rotors 200/200
  • Rims Mavic E-CrossTrail SL, 29 Boost 30mm internal width, hookless, tubeless ready, 28 spokes
  • Front Hub Mavic Infinity hub, Boost 15x110mm, IS 6 bolts
  • Rear Hub Mavic Infinity hub, ID360 freewheel technology, Boost 12x148mm, IS 6 bolts XD freehub
  • Tires Front Maxxis Minion DHF 29x2.5 WT, tubeless ready, 3C MAXX GRIP compound, EXO+ protection, 60TPI, folding bead
  • Tires Rear Maxxis Minion DHR II 29x2.5 WT, tubeless ready, 3C MAXX TERRA compound, EXO+ protection, 60TPI, folding bead
  • Saddle Fizik Terra Aidon X5 145mm
  • Seat Post Onoff Pija dropper internal, diameter 31.6mm, 1X Remote lever with bearing, S size: 140-115mm (388-235mm), M size: 160-135mm (428-255mm), ML size: 180-155mm (468-275mm), L size: 210 185mm (528-305mm), XL size: 210-185mm (528-305mm)
  • Stem Onoff S6 30mm 0°, 6061 forged alloy + CNC, 31.8mm barbore
  • Handle Bar Onoff S6 1.0 7050 alloy, rise: 25mm, width: 800mm, 8° backsweep, 5° upsweep, 31.8mm barbore. L and XL size: 1.5 rise
  • Handle Bar Width 800
  • Head Set Acros custom IS52/ZS56, 1-1/8”, 1.5” head tube, Internal cable routing, sealing plugs without blocklock
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About the author

Ludwig Döhl

Ludwig Döhl

... has spent more than 100,000 kilometers in the saddle of over 1000 different mountain bikes. The bottom line from many hours on the trail: mountain bikes are awesome if they match your personal preferences! With this insight, he founded bike-test.com to help bikers find their very own dream bike.