Cube Ams Zero99 C:68X SLT 29 Mountain Bike 2026 - XC Full Suspension MTB

















The Cube AMS Zero99 C:68X SLT 29 is designed to meet the demands of elite cross-country racing. At its heart is the C:68X carbon frame, weighing around 1,600g, crafted with Cube’s advanced Twin Mold process. The geometry is tuned for race efficiency, with optimised chainstays for climbing performance and angle adjustment inserts to fine-tune handling. Slender tube profiles help reduce weight and improve ride comfort without sacrificing stiffness.
Key Features:
- C:68X® carbon frame, 1,600g, tuned XC race geometry with angle adjustment
- RockShox SID SL Ultimate fork, 110mm travel, TwistLoc remote
- RockShox SID Luxe Ultimate rear shock, 110mm travel, TwistLoc remote
- SRAM XX SL Eagle AXS 12-speed wireless Transmission
- SRAM Level Ultimate hydraulic disc brakes, 180/160mm rotors
- Newmen Phase 30 VONOA carbon wheels, tubeless-ready
- Fox Transfer Factory dropper post with Kashima coating
- Available with 0% APR finance
Suspension is handled by RockShox SID Ultimate components, with a 110mm SID SL Ultimate fork and SID Luxe Ultimate shock. Both are fitted with TwistLoc remotes, letting you lock out or open the suspension instantly for maximum efficiency on climbs and technical control on descents.
Power delivery comes from the SRAM XX SL Eagle AXS Transmission, the lightest and most advanced wireless drivetrain in the Eagle range. Its direct-mount derailleur and carbon chainset ensure precise, reliable shifting and a stiff, efficient pedalling platform. With a 10-52T cassette, you’ll have the range for steep climbs and high-speed sections alike.
Braking performance is provided by SRAM Level Ultimate hydraulic discs, lightweight yet powerful enough for demanding XC courses. The bike rolls on Newmen Phase 30 carbon wheels with VONOA carbon spokes, combining stiffness, responsiveness and tubeless-ready compatibility. They’re wrapped in Schwalbe Racing Ray and Racing Ralph Super Race tyres for grip, low rolling resistance and rapid acceleration.
Finishing touches include a Fox Transfer Factory dropper post with Kashima coating for quick saddle adjustments, a Newmen Advanced SL carbon bar for responsive steering, and an ACID Nuance SLT X carbon saddle for lightweight comfort. The liquidlava’n’black paint scheme finishes off this XC race machine.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | C:68X® Monocoque Advanced Twin Mold Technology, FSP 4-Link, Boost 148, UDH™ |
| Fork | RockShox SID SL Ultimate, Tapered, 15x110mm, 110mm, TwistLoc |
| Rear Shock | RockShox SID Luxe Ultimate RLR, 190x40mm, TwistLoc |
| Headset | ACROS Integrated, Top 1 1/8", Bottom 1 1/2", Fiber Inserts for Angle Adjustment |
| Stem | Newmen Evolution SL 318.2, 31.8mm |
| Bars | Newmen Advanced SL 318.0, Carbon, 740mm |
| Front Brake | Sram Level Ultimate, Hydr. Disc Brake (180/160) |
| Rear Brake | Sram Level Ultimate, Hydr. Disc Brake (180/160) |
| Rear Mech | Sram XX SL Eagle AXS™ Transmission, 12-Speed |
| Shifters | Sram AXS™ Pod Ultimate Controller |
| Speed | 12 |
| Rims | Newmen Phase 30 light/light VONOA Carbon, 24/24 Carbon Spokes, 15x110mm/12x148mm, Tubeless Ready |
| Front Tyre | Schwalbe Racing Ray, Super Race, Addix Speed, Kevlar, 2.35 |
| Rear Tyre | Schwalbe Racing Ralph, Super Race, Addix Speed, Kevlar, 2.35 |
| Seat Post | Fox Transfer Factory 30.9mm, Kashima Coated |
| Saddle | ACID Nuance SLT X Carbon |
| Chainset | Sram XX SL Eagle™ Transmission, Carbon, 32T |
| Bottom Bracket | Sram DUB MTB, 92mm Pressfit |
| Chain | Sram XX SL Eagle™ Transmission |
| Cassette | Sram XX SL Eagle™ Transmission XS-1299, 10-52T |
Cube AMS Size Chart
|
Size |
Height (cm) | Height (in) |
|
S - 16" |
163 – 170 | 5’4” – 5’7” |
|
M - 18" |
169 – 179 | 5’6” – 5’10” |
| L - 20" | 178 – 188 | 5’10” – 6’2” |
| XL - 22" | 187 - 197 | 6’2” – 6’5” |
What size frame do I need if I am between sizes? - read here
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Cube Ams Zero99 C:68X SLT 29 Mountain Bike 2026 - XC Full Suspension MTB
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