Mondraker Summum R Mullet 2026

Mondraker Summum R Mullet GX DH 7-speed downhill mountain bike, fog grey, 29"/27.5" 2026

The Mondraker Summum R Mullet 2026 is a downhill mountain bike designed for competition and aggressive DH riding. Developed using World Cup technologies, it embodies Mondraker 's approach to performance, suspension kinematics, and optimized handling in extreme conditions. Positioned as a downhill racing-oriented model, it benefits from development directly linked to the experience of the Mondraker Factory DH team.

Forged on the most demanding World Cup tracks, the Summum was designed as a tool for downhill speed. It features DH-specific Forward Geometry, a revised Zero Suspension System kinematic, and a redesigned Stealth Alloy frame to improve stiffness, suspension sensitivity, and overall bike precision.

Concept and development

Introducing the new Summum

The Summum represents Mondraker 's passion for technology, competition, and downhill. The first type of bike produced by the brand, it has become the most successful racing model in the range.

Tool for Downhill Racing

Developed using advanced design techniques and tested on World Cup tracks, this new Summum was built and validated with the Mondraker Factory DH team.

Proven racing kinematics

The model incorporates a completely redesigned Zero Suspension System kinematic, offering better mid-stroke support and more sensitive suspension at the beginning of the travel, for faster and more precise handling.

Forward Geometry specific to DH

The geometry incorporates an extended reach and a more open head angle, directly inspired by the configurations used in the World Cup.

Validation Factory Team

The development of the Summum is based on direct feedback collected by the MFR DH team over the course of competition seasons.

27 possible settings

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 allowing rear base lengths of 450 mm or 460 mm from a standard base of 455 mm.

Stealth Alloy Frame

Frame made from Stealth Alloy with tube profiles optimized for stiffness and controlled tolerances. The design was completely redesigned after development and testing of prototypes by the MFR DH team.

New sealed bearings

Standardized bearing dimensions at all pivot points, specific hardware and rubber seals ensuring better protection against external elements.

Internal cable routing

Guided internal routing system facilitating installation and reducing background noise.

Frame protection

Redesigned rubber protectors on the chainstays, downtube, and bottom bracket reduce noise and protect the frame from impacts. Additional downtube protection provides extra protection during lift operations and transport.

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 bearing, SuperBoost 12x157mm rear axle, UDH dropout, 83mm BSA bottom bracket, Enduro dual capacity MAX bearings, HHG internal routing, ISCG 05.

Sizes

M / L / XL MX.

Rear shock absorber

Fox DHX2 Performance Elite , 225x75 mm. Adjustments: low-speed compression, low-speed rebound, spring preload. Top Trunnion mount, 30x8 mm lower bushings.

Shock absorber settings

Compression CL80, rebound RL70, Rezi B80, Bleed 0.5, VVCM. Spring stiffness: size M 450 lbs, size L 500 lbs, size XL 550 lbs.

Fork

Fox 40 29 Float GRIP Performance, 203 mm travel, air spring, 1-1/8” steerer tube, 20x110 mm axle, 52 mm offset. Adjustments: 3-position compression and air preload.

Steering game

ONOFF DH ARS (Adjustable Reach System), 1-1/8" pivot”, 42x30x7 45ºx45º ACB sealed bearings, geometry kit cups.

Cockpit

Gallows

ONOFF S9 DH CNC Integrated, adjustable length 45-50 mm, curve 10 mm, bore 31.8 mm, 7075 alloy, 2x6 mm spacer.

Hanger

ONOFF S6 1.0 alloy 7050, rise 25 mm, width 800 mm, backsweep 8º, upsweep 5º, bore 31.8 mm.

Handles

ONOFF Desert Pro lock-on CNC 135 mm. Sizes L and XL with thicker diameter.

Components

Seat post

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

Saddle

Ergon SM10 DH black.

Brakes

Front brake

Sram Maven Base, 4-piston 18 mm caliper, Centerline 220 mm one-piece IS 6-hole disc, organic pads on steel.

Rear brake

Sram Maven Base, 4-piston 18 mm caliper, Centerline 220 mm one-piece IS 6-hole disc, organic pads on steel.

Brake lever

Sram Maven Base, SwingLink, shifter pivot rings, tool-free reach adjustment.

Wheels

Rims

e*thirteen Grappler Flux, IW30 hookless, welded aluminium 6069, internal width 30 mm, Tubeless compatible, 28 spokes.

Rays

e*thirteen Sapim D-light / Brass.

Front hub

e*thirteen Boost 20x110 mm, triple reinforcement, machined aluminium, IS 6 hole disc mount.

Rear hub

e*thirteen 12x157 mm Sidekick, adjustable dead zone 12°/15°/18°, triple sealing, machined aluminium, 6 degree engagement, 6 hole IS mounting, HG body.

Front tire

Maxxis Assegai 29x2.5WT, tubeless compatible, 3C Maxx Grip compound, DH casing, 60x2TPI, folding bead.

Rear tire

Maxxis Minion DHR II 27.5x2.5 WT, tubeless compatible, 3C Maxx Terra rubber, DH+ protection, 60x2TPI, flexible bead.

Transmission

Crank

Sram Truvativ Descendant DH, DUB axle, direct mount, length 165 mm CL 56.5.

Plateau

34-tooth X-SYNC steel.

Bottom bracket

Sram DUB BSA, sealed bearings, 83 mm.

Chain

Sram PC1110 11 speed Powerlock.

front derailleur

e*thirteen Vario Compact Upper Slider, alloy backplate, DMB Direct Mount, lower slider 34-36 teeth, adjustable ISCG 05 upper slider.

rear derailleur

Sram GX DH, 7 speeds, medium cage.

Gear shift levers

Sram trigger GX DH 7 speed, X-actuation 1:1.

Cassette

Sram PG 720, 11-25 teeth, 7 speeds.

Derailleur hanger

Sram UDH.

Others

geometry kit included

Steering cups +-5 mm, lower shock absorber mounting adjustment insert, rear bracket +5 mm, rear bracket -5 mm.

Weight

18.7 kg.

Competition context

UCI World Championships 2026

In 2026, the UCI World Championships return to Val di Sole in Italy, the site where Mondraker achieved a Men's Elite Downhill triple in 2016 with Danny Hart, Laurie Greenland, and Florent Payet. The Summum will be entered to try and repeat this feat ten years later.

Reference in the range

The Summum is Mondraker 's most successful racing bike and is a benchmark in the downhill range.

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