A solid all-round descender (70° head angle, 120mm) — capable in the rough and steep without being an all-out bruiser.
Thundra 2024
How current the bike is — newer chassis, motor and battery score higher. 10 = brand-new, 0 = legacy.
Slack alloy e-hardtail with a big battery for playful trail use

The 2024 Mondraker Thundra was the brand's full-power aluminium trail hardtail eMTB, a deliberately accessible gateway into Mondraker's electric range. It paired a 6061 Xtralite Stealth alloy frame with Mondraker's long-reach Forward Geometry, a 120mm RockShox Recon Silver RL fork and full 29in wheels, all built around the then-new Shimano STEPS EP600 motor (85Nm) and a non-removable 720Wh Simplo battery, with an optional 360Wh range extender to push combined capacity to 1080Wh.
As a hardtail it has no rear shock by design, so the 120mm figure is all front travel. Geometry runs a relaxed 70 degree head angle, a 74.5 degree seat angle and a fixed 455mm chainstay, with reaches from 415mm at XS up to 510mm at XL across five sizes. Those reach numbers are long for the size, which is normal for Forward Geometry rather than a data error. The low 308mm bottom bracket and -70mm drop keep it stable for a hardtail.
For 2024 Mondraker offered two trail-hardtail builds. The upper base Thundra leaned on value-focused kit: a SRAM SX Eagle 1x12 drivetrain, SRAM Level T two-piston brakes (200mm front, 180mm rear), Mavic E-CrossRide wheels, Maxxis Rekon 29x2.6 tyres and an Onoff alloy cockpit. Notably it shipped with a rigid Onoff seatpost rather than a dropper, and a claimed weight of around 22kg, in a Gray/Black/Yellow finish at 3199 GBP RRP. The cheaper Thundra S shared the same 6061 Xtralite frame, EP600 motor, 720Wh battery and Maxxis Rekon tyres, but swapped to a RockShox Judy Silver TK 120mm fork on a 9x100mm quick-release front axle and upgraded to SRAM G2 R four-piston brakes (same 200mm front, 180mm rear rotors), with MDK-HP1 rims on Formula hubs and an MDK Urban stem, listed at 3499 EUR RRP. Both kept the same rigid Onoff seatpost, so neither shipped with a dropper.
The Thundra has since been discontinued and was not carried into 2026. It should not be confused with the Thundra X, which is Mondraker's urban-cross commuter variant on the same frame platform and sits outside the trail eMTB category.
What the numbers mean on the trail
Computed from this bike's geometry, spec and build kit — reach, wheelbase, chainstay, head and seat angles, travel, motor, weight and the fork/tyre/brake spec — and worked out per size, because a fixed chainstay can make an S and an XL feel very different.
Short 455mm rear and a lighter build — easy to pop, manual and throw around.
Rear-long with a planted front in L (FC:RC 1.65) — easy to weight the front and quick to turn, though it can feel light at the back at real speed.
Shimano EP6 (DU-EP600) and a steep 74.5° seat angle keep the weight planted over the front — a proper winch. 500W of peak power and 85Nm of torque — a strong full-power motor.
Easy to throw around; happiest when you're active on the bike.
The numbers are well balanced for its category.
How it stacks up vs other Full Power · Cross-Country bikes (from 130 bikes in the database)
Geometry · hover a row to highlight the measurement on the bike
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Reach | 415 mm | 430 mm | 460 mm | 485 mm | 510 mm |
| Stack | 630 mm | 630 mm | 630 mm | 648 mm | 648 mm |
| Seattube | 380 mm | 390 mm | 430 mm | 470 mm | 510 mm |
| Chainstay | 455 mm | 455 mm | 455 mm | 455 mm | 455 mm |
| Headtube Angle | 70° | 70° | 70° | 70° | 70° |
| Seattube Angle (eff) | 74.5° | 74.5° | 74.5° | 74.5° | 74.5° |
| Wheelbase | 1132 mm | 1148 mm | 1178 mm | 1205 mm | 1230 mm |
| Headtube | 110 mm | 110 mm | 110 mm | 130 mm | 130 mm |
| BB Height | 308 mm | 308 mm | 308 mm | 308 mm | 308 mm |
| Front Centre | 677 mm* | 693 mm* | 723 mm* | 750 mm* | 775 mm* |
| FC:RC | 1.49 | 1.52 | 1.59 | 1.65 | 1.70 |
Trims · 2
Thundra £3,199 | Thundra S €3,499 | |
|---|---|---|
| Motor | Shimano EP6 (DU-EP600) · 85 Nm · all trims | |
| Battery | Simplo internal 720Wh · 720 Wh · all trims | |
| Travel F/R | 120/? mm · all trims | |
| Frame | Thundra 6061 Xtralite Full Butted Alloy, Forward Geometry, integrated internal non-removable battery, tapered head tube, Boost 12x148mm rear axle, integrated dropout speed sensor. *Optional external battery · all trims | |
| Fork | RockShox Recon Silver RL 29, 120mm, Motion Control, Solo Air, tapered steerer tube, Boost 15x110mm axle, 32mm steel stanchions, 42mm offset. Settings: low-speed compression adjustment to lock, rebound, air preload | RockShox Judy Silver TK 29, 120mm, TurnKey, Solo Air, tapered steerer tube, 9x100mm axle, 30mm steel stanchions, 51mm offset. Settings: Poplock 2 pos remote compression (open/lock), rebound, air preload |
| Headset | Onoff Saturn tapered for 1-1/8 to 1-1/2 head tube, ACB sealed bearings, top 41x30.2x7x45x45, bottom 51.9x40x8x45x45 · all trims | |
| Stem | Onoff Sulfur FG 30mm 0 degree, 6061 forged alloy, 31.8mm barbore | MDK Urban 40mm 5 degree, 6061 forged alloy, 31.8mm barbore |
| Handlebar | Onoff Sulfur 1.0 double butted 6061 alloy, rise 20mm, width 800mm, 9 degree backsweep, 5 degree upsweep, 31.8mm barbore · all trims | |
| Grips | Onoff Twin, lock-on, 135mm · all trims | |
| Saddle | MDK ebike black · all trims | |
| Seatpost | Onoff Sulfur 0-R rigid (non-dropper), 6061 T6 alloy, 3D forged, 31.6mm diameter, 400mm length | Onoff Sulfur 0-R, 6061 T6 Alloy, 3D forged, diameter 31.6mm, length 400mm (rigid, non-dropper) |
| Brakes | Sram Level T, 2-piece caliper, Centerline 200mm IS 6 bolts one-piece rotor steel-backed organic pad (front) / Sram Level T, 2-piece caliper, Centerline 180mm IS 6 bolts one-piece rotor steel-backed organic pad (rear). Front rotor 200mm, rear rotor 180mm | Sram G2 R, 4-piston caliper, Centerline 200mm IS 6 bolts one-piece rotor, steel-backed organic pads (front) / Sram G2 R, 4-piston caliper, Centerline 180mm IS 6 bolts one-piece rotor, steel-backed organic pads (rear). Levers: Sram G2 R, tool-free reach adjust, lever pivot bushings. Front rotor 200mm, rear rotor 180mm |
| Rear derailleur | SRAM SX Eagle, Type 3 roller bearing clutch, cage lock, long cage, 1x12s, X-Actuation 1:1 · all trims | |
| Crank | Shimano EP8 ebike crank, 165mm (listed by Mondraker as 'FSA Shimano EP8' on the EP600 powertrain). Chainring: SRAM X-Sync 2 Eagle 34T, steel, narrow-wide, 104 BCD | FSA Shimano EP8, 165mm (listed by the retailer as 'FSA Shimano EP8' on the EP600 powertrain). Chainring: Sram X-Sync 2 Eagle 34T, steel, narrow-wide, 104 BCD |
| Shifters | SRAM Trigger SX Eagle, 12s, X-Actuation 1:1, single click · all trims | |
| Cassette | SRAM PG-1210, 11-50T, 12s · all trims | |
| Chain | SRAM SX Eagle, 12s, Powerlock · all trims | |
| Drivetrain | SRAM SX Eagle, Type 3 roller bearing clutch, cage lock, long cage, 1x12s, X-Actuation 1:1; Shimano EP8 ebike crank, 165mm (listed by Mondraker as 'FSA Shimano EP8' on the EP600 powertrain). Chainring: SRAM X-Sync 2 Eagle 34T, steel, narrow-wide, 104 BCD; SRAM Trigger SX Eagle, 12s, X-Actuation 1:1, single click; SRAM PG-1210, 11-50T, 12s; SRAM SX Eagle, 12s, Powerlock | Sram SX Eagle, Type 3 roller bearing clutch, cage lock, long cage, 1x12s, X-actuation 1:1; FSA Shimano EP8, 165mm (listed by the retailer as 'FSA Shimano EP8' on the EP600 powertrain). Chainring: Sram X-Sync 2 Eagle 34T, steel, narrow-wide, 104 BCD; Sram Trigger SX Eagle, 12s, X-Actuation 1:1, single click; Sram PG-1210, 11-50T, 12s; Sram SX Eagle, 12s, Powerlock |
| Wheels | Mavic E-CrossRide 29, 30mm internal width, welded, PFP, tubeless ready, 28 spokes, 29 front and rear. Spokes: Mavic J-bend double butted, contactless lacing. Hubs: Mavic Boost (front 15x110mm IS 6 bolts; rear 12x148mm ID360 Ratchet system, IS 6 bolts, HG freehub) | MDK-HP1 29, 30mm internal width, tubeless ready, 32 spokes. Spokes: CN round stainless steel. Hubs: Formula DC711 front (Boost 15x110mm, sealed bearings, IS 6 bolts) / Formula EHL148 rear (Boost 12x148mm, sealed bearings, IS 6 bolts) |
| Tyres | Maxxis Rekon 29x2.6 (front) / Maxxis Rekon 29x2.6 (rear), tubeless ready, dual compound, EXO protection, 60TPI, folding bead · all trims | |
| Weight | 22 kg | — |
| Price | £3,199 | €3,499 |
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