Mondraker Summum R Mullet 2026 Downhill Bike - Fog Grey
Race-Bred Downhill Speed with Full Mullet Setup
The Mondraker Summum R Mullet 2026 is built for riders who want a full-gas downhill bike with proper race pedigree. With 203mm front travel, 200mm rear travel, a mullet wheel setup and Mondraker’s updated Zero Suspension System, it is designed for steep tracks, bike park laps and hard-hitting downhill riding where stability and speed matter most.
This is a bike built from Mondraker’s World Cup downhill development, and it shows. The updated kinematics give better mid-stroke support and improved suppleness off the top, while the mullet setup keeps the front end planted and the rear end more agile through tighter turns and rough sections.
Key Features
- Summum MX 6061 Alloy Stealth Evo frame
- Updated Zero Suspension System
- 200mm rear travel
- Fox 40 Performance 29 fork, 203mm travel
- Fox DHX2 Performance Elite rear shock
- SRAM GX DH 7-speed drivetrain
- SRAM Maven Base 4-piston brakes
- e*thirteen Grappler Flux wheelset
- Mullet setup with 29in front and 27.5in rear
- 27 possible geometry adjustment options
- Adjustable reach headset cups, flip chip and adjustable rear dropouts
Why It Stands Out
The Summum R Mullet is all about going fast downhill without overcomplicating things. It takes everything Mondraker has learned from downhill racing and puts it into a bike that is built to stay composed when tracks get steep, rough and properly blown out.
One of the biggest highlights is how adjustable it is. Mondraker has built in reach adjustment, bottom bracket and angle adjustment through the lower shock mount flip chip, and chainstay adjustment through the rear dropout system. That makes it much easier to fine-tune the bike for different tracks and riding styles.
Specifications
| Category | Specification |
|---|---|
| Model | Mondraker Summum R Mullet 2026 |
| Colour | Fog Grey / Superblack / Solar Flare |
| Price | £4,999 |
| Frame | Summum MX 6061 Alloy Stealth Evo, Mullet, hydroformed tubing, Updated Zero Suspension System, 200mm travel, Forward Geometry, alloy upper link with shock eyelet bearings, 12x157mm rear axle, UDH, 83mm BSA bottom bracket, MAX capacity dual row Enduro bearings, HHG internal cable routing, ISCG 05 |
| Frame Sizes | M / L / XL |
| Fork | Fox 40 29 Float GRIP Performance, 203mm, air spring, 20x110mm axle, 52mm offset |
| Rear Shock | Fox DHX2 Performance Elite, 225x75mm |
| Shock Spring Rate | M: 450 lbs / L: 500 lbs / XL: 550 lbs |
| Front Travel | 203mm |
| Rear Travel | 200mm |
| Wheel Setup | Mullet |
| Front Wheel Size | 29" |
| Rear Wheel Size | 27.5" |
| Headset | Onoff DH ARS Adjustable Reach System, 1-1/8", sealed bearings, reach geometry kit cups (+/-5mm) |
| Stem | Onoff S9 DH CNC Integrated, 45-50mm adjustable length, 10mm rise |
| Handlebar | Onoff S6 1.0 7050 alloy, 800mm width, 25mm rise |
| Grips | Onoff Desert Pro lock-on |
| Seatpost | Onoff S3 DH Alloy, 31.6mm, 300mm |
| Saddle | Ergon SM10 DH Black |
| Front Brake | SRAM Maven Base, 4-piston, 220mm rotor |
| Rear Brake | SRAM Maven Base, 4-piston, 200mm rotor |
| Rims | e*thirteen Grappler Flux, IW30 Hookless, 30mm internal width, tubeless ready |
| Spokes | e*thirteen Sapim D-light / Brass |
| Front Hub | e*thirteen Boost 20x110mm, triple-sealed, IS 6-bolt |
| Rear Hub | e*thirteen 12x157mm Sidekick, triple-sealed, IS 6-bolt, HG freehub |
| Front Tyre | Maxxis Assegai 29x2.5WT, 3C Maxx Grip, DH casing, tubeless ready |
| Rear Tyre | Maxxis Minion DHR II 27.5x2.5WT, 3C Maxx Terra, DH protection, tubeless ready |
| Crankset | SRAM Truvativ Descendant DH, DUB axle, direct mount, 165mm |
| Chainring | 34T steel X-SYNC |
| Bottom Bracket | SRAM DUB BSA, 83mm |
| Chain | SRAM PC1110 |
| Rear Derailleur | SRAM GX DH, 7-speed, medium cage |
| Shifter | SRAM GX DH trigger, 7-speed |
| Cassette | SRAM PG 720, 11-25T, 7-speed |
| Chainguide | E*thirteen Vario Compact Upper Slider with alloy backplate and direct mount bashguard lower slider |
| Claimed Weight | 18.9kg |
Geometry & Adjustment Highlights
| Feature | Details |
|---|---|
| Reach Adjustment | 3 headset positions: standard and +/-5mm |
| Bottom Bracket / Angle Adjustment | Lower shock-mount flip chip, +/-5mm BB height and +/-0.35° angle adjustment |
| Chainstay Adjustment | 455mm standard with 450mm or 460mm options via adjustable dropouts |
| Total Setup Options | Up to 27 possible configurations |
| Head Angle | 62.5° standard |
| Bottom Bracket Height | 350mm standard |
Size Guide
| Frame Size | Recommended Rider Height |
|---|---|
| M | 165–175cm |
| L | 175–185cm |
| XL | 185–195cm |
The Summum R Mullet is a proper downhill race bike, so the whole build is focused on descending performance, big-hit control and track-specific adjustability rather than all-round trail use.