Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 27.5" -
Travel Front 200mm -
Travel Rear 200mm -
Fork RockShox BoXXer Select
-
Groupset GX, e*thirteen -
Suspension Full -
Drivetrain 1 × 7 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Summum 29 6061 Alloy Stealth Evo, hydroformed tubing, Zero suspension system, 200mm travel, Forward Geometry, alloy upper link with shock eyelet bearings, SuperBoost 12x157mm rear axle, 83mm BSA bottom bracket, MAX. capacity dual row Enduro bearings, HHG internal cable routing, ISCG 05. *Optional Geometry kit
Suspension Fork
Rockshox Boxxer Select RC 29, 200mm, DebonAir+, 1-1/8” steerer tube, Boost 20x110mm axle, offset 52mm. Settings: low-speed compression, rebound, air preload
Rear Shock
Rock Shox Super Deluxe Coil Select R, 225x70mm. LNM ST B1, Linear rebound, Medium compression, spring preload. Trunnion top mount, 30x8mm bottom bushings
Drivetrain
Rear Derailleur
SRAM GX DH, 7s, medium cage, X-actuation 1:1
Front Derailleur
E.13 Vario Compact Upper Slider,Alloy backplate,DMB (Direct mount Bashguard) Lower Slider 34-36t, ISCG 05 adjustable upper slider
Shift Levers
SRAM trigger GX DH 7s, X-actuation 1:1
Crank
SRAM Truvativ Descendant DH, DUB axle, Direct mount chain ring, 165mm CL 56´5, Rings: 34T, steel, X-SYNC
Bottom Bracket
SRAM DUB BSA, sealed bearings, 83mm
Chain
SRAM PC1110 11s, Powerlock
Wheels
Front Hub
Mavic Boost 20x110mm, IS 6 bolts
Rear Hub
Mavic 12x157mm, ID360 freewheel, sealed bearings, IS 6 bolts, HG freehub
Rims
Mavic Deemax BikePark 27,5, 30mm internal width, 32 holes
Spokes
Mavic 32 steel flat spokes
Tires
Front: Michelin DH34 27,5x2.4, tubeless ready, Magi-X DH compound, double-reinforced DH shield casing, wire bead, Rear: Michelin DH34 27,5x2.4, tubeless ready, Magi-X DH compound, double-reinforced DH shield casing, wire bead
Brakes
Brakes
Front: SRAM DB8, oversized 4-piston caliper, Centerline 220mm IS 6 bolts one-piece rotor, steel-backed metal sintered pads, Rear: SRAM DB8, oversized 4-piston caliper, Centerline 220mm IS 6 bolts one-piece rotor, steel-backed metal sintered pads
Brake Levers
SRAM DB8, tool reach adjust, lever pivot bushings
Cockpit
Stem
Onoff Krypton DH CNC Integrated FG, 25-30mm adjustable length, 31.8mm barbore, 6061 alloy, 2x6mm spacer
Handlebar
Onoff Sulfur 1.0 double butted 6061 alloy, rise: 20mm, width: 800mm, 9º backsweep, 5º upsweep, 31.8mm barbore
Grips
Onoff Twin, 1lock-on, 135mm
Headset
Onoff Mercurium 1.5 ZS for 1-1/8” steerer tube, 41x30.15x7x45ºx45º ACB sealed bearings, geometry kit cups, external diameter 56mm
Seat
Saddle
SDG I-Fly 2.0 I-Beam, high-density PU foam, Cordura sides
Seatpost
SDG Micro I-Beam SP-751 Alloy, diameter 31.6mm, length 300mm, micro-adjustment
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.47 mm | 1.404 mm | 1.331 mm | 1.264 mm |
| Bottom Bracket Height | 350 mm | 350 mm | 350 mm | 350 mm |
| Rake | 58 mm | 58 mm | 58 mm | 58 mm |
| Stack | 632 mm | 632 mm | 632 mm | 632 mm |
| Reach | 430 mm | 450 mm | 475 mm | 500 mm |
| Top Tube Length | 576 mm | 596 mm | 621 mm | 646 mm |
| Seat Tube Angle | 77 ° | 77 ° | 77 ° | 77 ° |
| Seat Tube Length | 400 mm | 400 mm | 400 mm | 400 mm |
| Head Tube Angle | 63.5 ° | 63.5 ° | 63.5 ° | 63.5 ° |
| Head Tube Length | 112 mm | 112 mm | 112 mm | 112 mm |
| Chainstay Length | 450 mm | 450 mm | 450 mm | 450 mm |
| Wheelbase | 1256 mm | 1270 mm | 1301 mm | 1326 mm |
| Bottom Bracket Drop | 5 mm | 5 mm | 5 mm | 5 mm |
| Wheels | 27" | 27" | 27" | 27" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |
Model Overview
SUMMUM Mullet is a Mondraker Summum model. There are 35 bikes that carry this model name. You can get a glimpse at all models from 2023, by clicking on this link.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Average price for Downhill bikes
According to our math, the average price for a trustworthy Downhill bike is 3391$. However, this doesn’t mean that if you spend less money on a Downhill bike, you couldn’t get a decent one. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Downhill bikes average weight
Downhill bikes have an average weight of 15.89 kg (35.03 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
Weighing 18.4 kg (40.57 lbs), the SUMMUM Mullet model is much heavier than average. In other words, this model is 15.8% heavier than the average Downhill bike.
Internal Cable Routing
Moreover, this bike comes with internal cable routing allowing you to keep the cables in a good condition. It also makes it look more professional.
Overview of components
Fork
The fork installed on this bike is the RockShox BoXXer Select model. The travel on this model is 200mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Rear Shock
Mondraker SUMMUM Mullet bike has the Rock Shox Super Deluxe Coil Select R model installed, and has a travel of 200mm. Bike rear shocks increase the riding comfort, and also give you more control over technical trails. In conclusion, to increase your riding experience, get a bike with a rear shock if possible.
Wheels size
When leaving the production line, the SUMMUM Mullet model has 27.5″ aluminum wheels. These wheels will provide you with more control over the bike. However, the overall traction of 27.5″ wheels is lower than 29″ wheels.
Brakes
For your safety, it is important to have quality breaks on your bike. Mondraker SUMMUM Mullet has Hydraulic Disc brakes installed. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, your safety is in good hands.
Sizes
Mondraker SUMMUM Mullet bike has 4 sizes, in the range of 158 cm – 199 cm (5.18 ft – 6.53 ft). In conclusion, it won’t take much to find one that’s right for you.