Mondraker SLY - Perfectly Balenced, Impressively Powerful
Mondraker's dedication to pushing the boundaries of e-MTB design is evident in the SLY 2025, a full suspension electric mountain bike that sets a new standard for aluminium construction. Through advancements in their Stealth Alloy technology, Mondraker has achieved a remarkable feat: an e-bike that rivals the performance of their carbon fibre models, all while maintaining a featherlight weight of under 21kg. The SLY's striking design, trail-ready suspension, and powerful Bosch Performance SX motor combine to create an exceptional lightweight EMTB experience that defies expectations.
ALUMINIUM, POWER AND LIGHTWEIGHT
Mondraker are convinced that SLY will become a reference point for riders looking for a truly versatile e-Bike. Since their inception, versatility has been a key point of our mid-power NEAT and DUNE models, as well as our full power CRAFTY; and SLY was never going to be the exception. SLY, tipping the scales at under 21kg, gives you the same performance from an aluminium frame as you’d expect from our full suspension, carbon fibre framed bikes.
STEALTH ALLOY FRAME
SLY’s Stealth Alloy frame demonstrates just how advanced our aluminium technology is and how finely we can tune it to meet the design criteria
demanded by individual models. In the case of the SLY we really want to showcase how we can endow an aluminium bike with the same identity and the same features as we do our range-topping carbon fibre frames. The frame carries the same organically angular design as the rest of the Light e-MTB range, the NEAT and DUNE, yet with the added bonus of the aesthetics of aluminium. The welds join the alloy tubes so seamlessly they’re almost
invisible.
BOSCH PERFORMANCE SX
SLY builds on the compact, light and punchy Bosch Performance SX with its 55Nm of torque and 600W of peak power. It’s the same motor we chose for the DUNE and combined with its 400Wh integrated battery it offers a very similar riding experience and performance to the NEAT and of course the DUNE. Available in two build options, R and RR, and with both of them weighing in at under 21kg, SLY takes the crown as our lightest full suspension 150mm travel aluminium e-Bike, regardless of category. Which, together with the performance of the Bosch SX motor and its optional 250Wh range extender, makes it the MPV for anyone looking for a lightweight aluminium enduro e-Bike in today’s market.
Specification
Frame
6061 Alloy Stealth Evo, hydroformed tubing, Updated Zero Suspension System, 150mm travel, Forward Geometry, internal battery, Boost 12x148mm rear axle, tapered head tube, one-piece Monoblock upper link, HHG internal cable routing, MAX capacity sealed bearings, oversize 15mm axles, exclusive plastic motor covers.
Sizes
S: 380mm / M: 410mm / ML: 435mm / L: 460mm / XL: 490mm
Rear shock
Rockshox Deluxe Select+, 185x55mm, Trunnion top mount, 30x8mm bottom bushings
Shock settings
L compression, digressive rebound, 4 tokens
Fork
Rockshox Psylo Gold RC, 160mm, 3 Position, Debon Air, tapered steerer tube, Boost 15x110mm axle, 35mm steel stanchions, 44mm offset. Settings: compression adjustment at low-speed to lock, rebound, air preload
Headset
Acros custom IS52/ZS56, 1-1/8", 1.5" head tube, Internal cable routing, sealing plugs without blocklock
Stem
Onoff S3 30mm 0º, 6061 forged alloy, 31.8mm barbore
Handlebar
Onoff S3 1.0 6061 alloy, rise: 25mm, width: 800mm, 8º backsweep, 5º upsweep, 31.8mm barbore. L and XL size: 1.5 rise.
Grips
Onoff Forest, CNC lock-on, 135mm
Seatpost
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)
Saddle
Fizik Terra Aidon X5 145mm
Front brake
Sram DB8 stealth, 4-piston caliper, Centerline 200mm IS 6 bolts one-piece rotor, steel-backed organic pads
Rear brake
Sram DB8 stealth, 4-piston caliper, Centerline 200mm IS 6 bolts one-piece rotor, steel-backed organic pads
Brake lever
Sram DB8, SwingLink and lever pivot bearings, tools-free reach and contact point adjust
Rims
Mavic E-CrossRide 29, 30mm internal width, welded, PFP, tubeless ready, 28 spokes
Spokes
Mavic J-bend double butted, contactless lacing
Front hub
Mavic, Boost 15x110mm, IS 6 bolts
Rear hub
Mavic, Boost 12x148mm, ID360 Ratched system, IS 6 bolts, HG freehub
Front tire
Maxxis Minion DHF 29x2.5 WT, tubeless ready, 3C MAXX GRIP compound, EXO+ protection, 60TPI, folding bead
Rear tire
Maxxis Minion DHR II 29x2.5 WT, tubeless ready, 3C MAXX TERRA compound, EXO+ protection, 60TPI, folding bead
Crankset
e*Thirteen Helix Core E*Spec Plus, All sizes: 160mm
Rings
Sram X-Sync 2 Eagle 34T, steel, narrow-wide, 104 BCD
Chain
Sram GX Eagle T-Type, 12s, Powerlock
Rear derrailleur
Sram S1000 Eagle AXS T-Type, 12s
Shift levers
Sram Eagle AXS Pod MMX, 12s
Casette
Sram XS-1270, 10-52T, T-Type, 12s
Weight
20,9 kg
Display
Purion 400 / Bosch Mini Remote / Bosch System Controller
Motor
Bosch Performance Line SX (25Km/h) GEN4 SMART SYSTEM Diagonal, Wide
Battery
Bosch Compact Powertube 400Wh
Geometry
| Size | S | M | M/L | L | XL | |
|---|---|---|---|---|---|---|
| A | Seat Tube Length | 380 mm | 410 mm | 435 mm | 460 mm | 490 mm |
| B | Top Tube Length | 595 mm | 615 mm | 635 mm | 660 mm | 685 mm |
| C | Bottom Bracket Drop | -22 mm | -22 mm | -22 mm | -22 mm | -22 mm |
| D | Bottom Bracket Height | 350 mm | 350 mm | 350 mm | 350 mm | 350 mm |
| E | Chainstay Length | 455 mm | 455 mm | 455 mm | 455 mm | 455 mm |
| F | Seat Tube Angle. Actual | 74° | 74° | 74° | 74° | 74° |
| G | Seat Tube Angle. Effective | 77° | 77° | 77° | 77° | 77° |
| H | Head Tube Angle | 64.5° | 64.5° | 64.5° | 64.5° | 64.5° |
| I | Fork Offset | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| J | Wheelbase | 1225 mm | 1250 mm | 1265 mm | 1290 mm | 1315 mm |
| K | Head Tube Length | 120 mm | 120 mm | 130 mm | 140 mm | 150 mm |
| L | Reach | 440 mm | 460 mm | 480 mm | 500 mm | 520 mm |
