Giant Anthem Advanced SL 2 Mountain Bike in Mariana Blue

Developed to help Giant pro Alan Hatherly win the 2025 Elite Men's XCO World Championship, the Giant Anthem Advanced SL 2 is a superlight XC composite flyer engineered for riders who want every possible advantage on technical terrain. If you're searching for a giant mountain bike that's genuinely race-bred rather than just race-branded, this is where the conversation starts.

• TOTAL CONTROL - the new FlexPoint Pro suspension delivers 120mm of smooth, active rear travel paired with a 120mm fork, helping you fly down rough descents and power up technical climbs without losing momentum. A flip chip lets you fine-tune handling across all types of XC terrain. Superlight composite or alloy Giant WheelSystems (depending on model) come with a next-generation 120-tooth helical ratchet drive system for immediate power transfer, plus robust 5mm rim sidewalls for greater protection against impacts and punctures. For Giant MTB riders in the UK who spend time on rocky, rooty trails, that puncture resistance alone is worth paying attention to.
  
  
• LOW-LATENCY SPEED CONCEPT - the fully reengineered composite frameset on the Giant Anthem Advanced SL 2 is 89 grams lighter than its predecessor, with a 7.95 percent greater stiffness-to-weight ratio to help you power up climbs and make every watt count. Weight matters enormously in XC racing, and this frameset takes that seriously. The WheelSystems and integrated handlebar/stem units are designed for maximum efficiency and instantaneous response to rider input. The rear shock is repositioned and semi-integrated with the top tube, shaving further weight and creating space for a second water bottle cage, which is a genuinely practical touch on longer days out.
  
  
• SYSTEM INTEGRATION - the new one-piece integrated handlebar/stem unit adds compliance to reduce shocks and vibrations, improving control and hand comfort across extended efforts. Available in two versions, the Contact SLR XC Integrated composite and the Contact SL XC Integrated alloy, both come with seamless cable routing and versatile sizing: 780mm standard width with stem lengths ranging from 50 to 90mm. Whether you're looking at the Giant Anthem SL 2 for weekend racing or fast trail riding, the fit options mean you won't be forced into a compromise.

For anyone in the UK considering a Giant Anthem Advanced SL 2 for sale, this is one of the best XC builds Giant has put together to date, and that's a high bar to clear.