Cube Attention SL 29 Mountain Bike - Hardtail Aluminum Frame And 29 Inch Wheels

Cube Attention SL 29 Mountain Bike pairs an Aluminium Lite hardtail frame with 29 inch wheels and a 100 mm RockShox Judy Silver TK Air fork for cross-country riding. For trail riders, the Shimano XT 1x12 drivetrain and hydraulic disc brakes matter most.

Cube Attention SL 29 Mountain Bike is a hardtail cross-country bike built around an Aluminium Lite frame with 29 inch wheels, aimed at riders who want a straightforward, low-maintenance setup for trails and gravel roads. The model combines a 100 mm RockShox Judy Silver TK Air suspension fork with hydraulic disc brakes and a wide-range 1x12 drivetrain to keep control and traction on rough surfaces.Specification listing with frame, fork and drivetrain

Aluminum Hardtail Frame And 29 Inch Wheel Concept

At the core of Cube Attention SL 29 Mountain Bike is an Aluminium Lite frame using advanced mechanical forming (AMF) with double-butted tubing, internal cable routing and a tapered head tube. This layout keeps weight moderate at a listed 13.6 kg while maintaining stiffness for precise steering.Frame construction and weight data The bike uses Cube's SizeSplit system: smaller XS and S frames run 27.5 inch wheels, while medium to XXL sizes are equipped with 29 inch wheels to balance fit and rollover behavior for different rider heights.Wheel size and frame size breakdown

The frame integrates a threaded bottom bracket for durability, flat-mount rear brake hardware and mounting points for ACID mudguards and carrier attachments, reflecting a cross-country design that can be adapted to everyday commuting. Cube also prepares the seat tube and cable routing for a future dropper post upgrade, so riders can add adjustable saddle height if they start tackling steeper descents.Dropper readiness and accessory mount specification

Suspension, Brakes And Drivetrain Package

Cube specifies a RockShox Judy Silver TK Air fork with 100 mm of travel and PopLoc remote lockout on Attention SL 29 Mountain Bike, giving riders on-trail compliance plus the option to firm up the front end for smoother climbs and pavement stretches.Fork model and travel specification Braking is handled by Shimano BR-MT200 and UR300 hydraulic disc calipers working with 180 mm and 160 mm rotors front and rear, providing consistent stopping power in wet and dry conditions without the maintenance demands of mechanical systems.Brake system and rotor sizes

For propulsion, Cube Attention SL 29 Mountain Bike uses a Shimano XT RD-M8100-SGS rear derailleur in a 1x12 configuration, combined with Shimano Deore SL-M6100 shifters, a 32 tooth Shimano FC.MT511 crank and a Shimano Deore CS-M6100 cassette spanning 10-51 teeth. This pairing offers a very wide gear range for steep climbs and fast flats while eliminating the complexity of a front derailleur.Drivetrain components and gear range Chain duties fall to a Shimano CN-M6100 model designed to work with the 12 speed system, contributing to clean shifting under load.

Rolling Hardware And Contact Points

On the rolling side, Cube Attention SL 29 Mountain Bike uses CUBE ZX20 32 hole disc rims paired with Schwalbe Smart Sam Active 2.25 inch tires, aiming at a balance of grip and speed for mixed trail surfaces.Rim and tire specification Shimano HB-M4050 and FH-MT401 hubs with quick release and Centerlock interfaces support easy wheel removal and straight-forward rotor servicing, normal for mid-range cross-country setups.

Contact points on Cube Attention SL 29 Mountain Bike include a CUBE Rise Trail Bar with 680 mm width, CUBE Performance Stem SL with 31.8 mm clamp and ACID React grips, all chosen to keep steering responsive without excessive leverage that can fatigue hands.Cockpit hardware details The seatpost is a CUBE Performance Post with 27.2 mm diameter, clamped by a CUBE Varioclose 31.8 mm collar and topped with a Natural Fit Venec Lite saddle, indicating a focus on balanced comfort rather than extreme racing positions.Seatpost and saddle specification

Positioning Against Other Hardtail Mountain Bikes

Cube Attention SL 29 Mountain Bike sits near the top of Cube's entry-level hardtail range, above simpler alloy models but below carbon race frames and full-suspension platforms. The use of a 1x12 Shimano XT rear derailleur, 100 mm air fork and hydraulic discs aligns it with many cross-country hardtails that blend recreational riding with occasional racing, compared with bikes that still run 2x10 or 3x9 drivetrains and coil-sprung forks.Context within entry-level hardtail range Across frame sizes, the SizeSplit concept mirrors the broader hardtail market trend: 27.5 inch wheels on smaller frames and 29 inch wheels as the default for medium and larger sizes, a configuration that improves rollover ability while staying manageable for shorter riders.Wheel size comparison to common practice

Compared with earlier Attention SL 29 configurations that used 2x10 drivetrains with triple chainsets and smaller-range cassettes, the current 1x12 setup offers cleaner cockpit layout and less chain management at the expense of some extremely high gearing used mainly for road sprinting.Older Attention SL 29 drivetrain specification For riders, the wide 10-51 tooth cassette means lower climbing gears than many older 11-36 tooth cassettes, improving access to steep off-road routes.

Use Cases, Strengths And Limits

As a hardtail with 100 mm travel and 2.25 inch tires, Cube Attention SL 29 Mountain Bike is best suited to cross-country trails, forest singletrack and mixed-surface rides rather than high-speed bike-park downhill lines or very rough enduro terrain. The absence of rear suspension keeps maintenance straightforward and allows more power transfer when pedaling on smoother paths, while the generous cassette range and hydraulic brakes help when routes include extended climbs and technical descents.Component mix supporting cross-country use

Compared with lower-tier aluminum hardtails that still rely on mechanical disc brakes and entry-level drivetrains, Cube Attention SL 29 Mountain Bike offers a more advanced stopping system, better small-bump compliance from the air fork and a lighter, more versatile drivetrain. Riders who plan mostly casual commuting may not fully use its gear range and suspension capabilities, but trail riders who want a simple platform for both weekend loops and fitness rides will find its specification aligned with those demands.

Cube Attention SL 29 Mountain Bike Key Facts

• Product: Cube Attention SL 29 Mountain Bike, Aluminium Lite frame, 29 inch wheels
• Manufacturer: Cube Bikes
• Category: Hardtail mountain bike (29 inch cross-country)
• Frame: Aluminium Lite, AMF, double-butted, internal cable routing, tapered head tube
• Fork travel: RockShox Judy Silver TK Air, 100 mm travel with PopLoc remote lockout
• Drivetrain: Shimano XT RD-M8100-SGS rear derailleur, 1x12, 32T crank, 10-51T cassette
• Brakes: Shimano BR-MT200/UR300 hydraulic disc brakes with 180 mm front and 160 mm rear rotors
• Wheel and tire setup: CUBE ZX20 32H disc rims with Schwalbe Smart Sam Active 2.25 inch tires
• Weight: 13.6 kg listed complete bike weight
• Target audience: Cross-country and trail riders seeking a straightforward aluminum hardtail with modern 1x12 gearing and hydraulic disc brakes