This Hardtail Goes Hard

The 2025 Giant XTC Advanced 29 1 Mountain Bike is made for responsive ride quality and maximum efficiency on fast, flowy singletrack. This lightweight composite hardtail is a great choice for XC racing or KOM chasing.

With its large-diameter 29-inch wheels and lightweight Advanced-grade composite frame, this responsive hardtail flies on XC terrain. The frameset is engineered for a 100mm fork, handcrafted with a specific composite layup schedule according to frame size. This creates an optimal stiffness-to-weight ratio with just the right amount of vertical compliance. It features wider Boost hub spacing, which improves wheel stiffness and adds clearance to run larger tires, plus a host of other features that let you dial in its performance on XC terrain.

Lightweight & Responsive

A handcrafted Advanced-grade composite frameset offers XC racers and riders a competitive advantage for climbing, accelerating and sprinting.

XC Efficiency

The frame is engineered with a high stiffness-to-weight-ratio, which translates to efficient pedaling power and precise handling on the trail.

Custom Compliance

Each frame is custom-tuned based on its size. Individual composite lay-up schedules are created to optimize vertical compliance to produce a smoother ride quality on XC terrain.

Features:

• Frame: Advanced-Grade Composite, 12x148mm thru-axle; 2.25″ max tire size, 38t max chainring size
• Fork: Fox 32 Float SC Performance, 100mm, GRIP damper, 44mm offset, two-position remote lockout, Boost 15×110 KaBolt
• Handlebar: Giant Contact XC Flat, 760x35mm
• Grips: Giant XC Pro S: 32mm, M: 32mm, L: 34mm, XL: 34mm
• Stem: Giant Contact SL XC 35 S: 60mm, M: 70mm, L: 80mm, XL: 90mm
• Seatpost: Giant Contact Switch dropper, remote S: 125mm travel / 30.9 x 395mm, M: 125mm travel / 30.9 x 395mm, L: 125mm travel / 30.9 x 395mm, XL: 125mm travel / 30.9 x 395mm
• Saddle: Fi’zi:k Antares R7 with S-Alloy rails
• Shifters: Shimano Deore XT M8100, 1×12
• Rear Derailleur: Shimano Deore XT M8100
• Brakes: Shimano Deore XT BR-M8100, hydraulic, Shimano RT-66 rotors [F] 180mm, [R] 160mm
• Brake Levers: Shimano Deore XT BL-M8100
• Cassette: Shimano SLX M7100, 10×51
• Chain: KMC X-12
• Crankset: Shimano Deore XT M8120, 32t S: 170mm, M: 175mm, L: 175mm, XL: 175mm
• Bottom Bracket: Shimano, press fit
• Rims: Giant XCR 2 Carbon 29 WheelSystem
• Hubs: Giant XCR 2 Carbon 29 WheelSystem
• Spokes: Giant XCR 2 Carbon 29 WheelSystem
• Tires: Maxxis Recon Race 29×2.25, foldable, TLR, EXO, tubeless