Mondraker Summum RR Mullet 2026

Mondraker Summum RR Mullet XX DH AXS 7-speed downhill mountain bike, Carrera blue, 29"/27.5" 2026

The Mondraker Summum RR Mullet 2026 is a downhill mountain bike developed for DH competition and demanding use in bike parks or races. Born from development work carried out with the Mondraker Factory DH team, this model is positioned as a performance-oriented platform, with a downhill-specific geometry, optimized suspension, and a level of equipment adapted to intensive riding.

Built around the brand's competition technologies, the 2026 Summum RR Mullet features the updated Zero Suspension System, a dedicated DH Forward Geometry, and a completely redesigned Stealth Alloy frame. The overall package aims to deliver greater control, speed, and precision on demanding trails.

Concept and development

Introducing the new Mondraker Summum

The Summum embodies Mondraker technology-driven, competition-oriented, and downhill approach. The first type of bike developed by the brand, it has become the most successful racing bike in the range.

Tool for Downhill Racing

The new Summum was designed using modern development techniques and validated on World Cup tracks with the Mondraker Factory DH team.

Race-proven kinematics

The Zero Suspension System kinematics have been completely redesigned to offer more performance, better mid-stroke support and more sensitive suspension at the beginning of the travel.

Forward Geometry specific to DH

The bike adopts an extended reach and an open head angle, directly inherited from the configurations used in the World Cup.

Validation by the Factory Team

The development is based on feedback collected in real-world conditions by the MFR DH team.

27 settings for a personalized setup

The frame allows up to 27 configurations thanks to adjustable headset cups, lower shock flip chip and adjustable rear dropouts.

Headset-Reach Adjustment

Three positions available: standard and +/-5 mm.

Lower Shock-Mount Flip Chip

Lower flip chip allowing adjustment of the bottom bracket height of +/-5 mm and the steering angle of +/-0.35°.

Adjustable rear dropouts

+/-5 mm adjustment with 450 mm or 460 mm options from a standard 455 mm rear base.

Dedicated geometry

The new Summum offers a specific geometry and is race-ready.

Stealth Alloy Frame

Stealth Alloy frame with optimized tube profiles for stiffness and controlled tolerances. The design was redefined based on feedback and prototypes tested by the MFR DH team.

New sealed bearings

Unified bearings on all pivots, specific hardware and rubber seals to improve protection against external elements and durability.

Internal cable routing

Guided internal routing system facilitating assembly and limiting unwanted noise.

Frame protection

Rubber protectors on the chainstays, downtube, and bottom bracket reduce noise and protect against impacts. Additional downtube protection is provided for transport or use on chairlifts.

Frame and suspension

Frame

Summum MX 6061 Alloy Stealth Evo, Mullet setup, hydroformed tubes, Updated Zero Suspension System, 200mm travel, Forward Geometry, alloy upper link with damper eyelet bearings, SuperBoost 12x157mm rear axle, UDH, 83mm BSA bottom bracket, high capacity dual row Enduro bearings, HHG internal routing, ISCG 05.

Sizes

M / L / XL MX.

Rear shock absorber

Rock Shox Vivid Coil Ultimate, 225x75 mm, linear rebound, medium compression, spring preload. Top Trunnion mount, 30x8 mm lower bushings.

Shock absorber settings

Medium compression, linear rebound. Spring stiffness: size M 450 lbs, size L 500 lbs, size XL 550 lbs.

Fork

Rockshox Boxxer Ultimate 29, Charger 3.2 RC2, 200 mm travel, DebonAir+, 1-1/8” steerer”, 20x110 mm Boost axle, 52 mm offset. Adjustments: low-speed compression, rebound, air preload.

Steering game

Onoff DH ARS (Adjustable Reach System) 1-1/8”, pivot 1-1/8”, sealed bearings 41x30x7 45ºx45º, reach geometry cups (+/-5 mm).

Cockpit

Gallows

Onoff S9 DH CNC Integrated, adjustable length 45-50 mm, rise 10 mm, bore 31.8 mm, 7075 alloy, 2x6 mm spacers.

Hanger

Onoff S6 1.0 alloy 7075, rise 25 mm, width 800 mm, backsweep 8º, upsweep 5º, bore 31.8 mm.

Handles

Onoff Desert Pro lock-on CNC 135 mm. Thicker size for L and XL.

Components

Seat post

Onoff S3 DH Alloy, diameter 31.6 mm, length 300 mm.

Saddle

Ergon SM10 DH Black.

Brakes

Front brake

Sram Maven Ultimate, 4-piston 18 mm caliper, HS2 220 mm one-piece IS 6-hole disc, sintered metal pads with steel backing.

Rear brake

Sram Maven Ultimate, 4-piston 18 mm caliper, HS2 220 mm one-piece IS 6-hole disc, sintered metal pads with steel backing.

Brake lever

Sram Maven Ultimate, SwingLink, pivot bearings, tool-free reach adjustment.

Wheels

Rims

DT Swiss EX1700 Classic 29, internal width 30 mm, welded aluminium, Tubeless Ready, 28 spokes at the front, 32 spokes at the rear.

Rays

DT Competition straight pull.

Front hub

DT 350 Boost 15x110 mm, 6-hole IS disc attachment.

Rear hub

DT 350 Classic with DEG 72T Ratchet, Boost 12x148 mm, 6-hole IS binding, XD body.

Front tire

Maxxis Assegai 29x2.5WT, Tubeless Ready, 3C Maxx Grip rubber, DH carcass, 60x2TPI, flexible bead.

Rear tire

Maxxis Minion DHR II 27.5x2.5 WT, Tubeless Ready, 3C Maxx Terra rubber, DH protection, 60x2TPI, soft bead.

Transmission

Crank

Sram XX DH T-Type, DUB axle, direct mount, length 160 mm CL 56.5.

Plateau

36 teeth aluminium T-Type.

Bottom bracket

Sram DUB BSA, sealed bearings, 83 mm.

Chain

Sram X0 Eagle T-Type, Powerlock.

Chain guide

E.13 Vario Compact Upper Slider, alloy backplate, DMB Direct Mount Bashguard, 34-36 tooth lower slider, adjustable ISCG 05 upper slider.

rear derailleur

Sram XX DH AXS T-Type, 7 speed.

Speed control

Sram Eagle AXS Pod.

Cassette

Sram XS 797 10-24 teeth, 7 speeds.

Derailleur hanger

Geometry kit included: +/-5 mm steering cups, flip chip lower shock absorber mount, +5 mm rear dropout, -5 mm rear dropout.

Weight

Weight

18.7 kg.

Competition context

UCI World Championships 2026

The UCI World Championships return to Val di Sole in 2026, the same venue where Mondraker achieved a clean sweep of the podium in the Elite Men's Downhill in 2016 with Danny Hart, Laurie Greenland, and Florent Payet. The new Summum will once again be competing to try and repeat this feat.

Position in the range

The Summum is Mondraker 's most successful racing bike and a historical benchmark for the brand.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.