Giant
Anthem X Advanced SL1
The 2026 Giant Anthem X Advanced SL is not a cosmetic variation of the Anthem race bike so much as a distinct branch of Giant’s new short-travel full-suspension platform. It uses the same Advanced SL carbon chassis and 120mm rear travel layout as the Anthem Advanced SL, but shifts the brief toward aggressive downcountry and light trail use with a 130mm fork, more storage, and geometry that sits clearly on the progressive side of the XC spectrum. The revival of the Anthem X name matters here because Giant has separated the pure race-oriented Anthem from the more versatile X, rather than simply offering a burlier build kit on the same bike.
The biggest engineering change is the move to Giant’s FlexPoint Pro rear suspension concept, replacing the older multi-link Maestro arrangement with a lighter single-pivot flexstay design. Giant also tucks the shock more neatly into the frame, which helps packaging and keeps the front triangle more usable. On the Anthem X Advanced SL specifically, that usability is reinforced by a downtube storage compartment that the non-X Anthem Advanced SL does not get. Combined with the two-position flip chip, modern cable integration, and optional integrated bar/stem setup, the bike is aimed at riders who want XC efficiency and low weight without giving up the practicality and descending confidence expected from a modern short-travel trail bike.
Spec sheet.
Every component shipped with this build.
Geometry & fit.
4 sizes published.
The Anthem X Advanced SL’s geometry is notably progressive for a bike in this travel category. In size L, the low setting produces a 66.1-degree head angle, 460mm reach, 437mm chainstays, 1196mm wheelbase, and 48mm BB drop; the high setting steepens the front end to 66.6 degrees, shortens the stays to 435mm, nudges reach to 465mm, and reduces BB drop to 42mm. Those numbers point to a bike that prioritizes stability and composure more than a traditional XC bike would, especially in the low setting, where the slacker head angle and greater trail figure around 119mm should add confidence on steeper and rougher descents.
The effective seat tube angle sits around 75 to 75.6 degrees depending on flip-chip position, which is moderate rather than extreme by current standards. That should keep climbing posture centered without pushing the rider overly far forward. Across sizes, reach numbers of 415mm (S), 440mm (M), 460mm (L), and 485mm (XL) are contemporary and paired with relatively short 435-437mm chainstays, giving the bike a balanced stance: long enough in front for control at speed, but not so stretched that it loses the quick handling expected from an efficient 120/130mm platform. The flip chip gives riders a meaningful choice between a lower, more planted setup and a slightly sharper, more pedal-friendly configuration.
Where the handlebar sits relative to the bottom bracket — the single most important fit pair.
01Fit geometry6 values
02Component geometry4 values
03Handling geometry7 values
Which size should I buy?
Slide your height to see the recommended size. GearWise's fit algorithm works from the published stack, reach, and ETT — the brand's own recommendation may differ.
→Calculated from GearWise's own stack / reach / ETT algorithm — the brand's size chart may recommend a different size, and a proper bike fit beats any calculator.
The lineup.
3 builds, ranging $4,800 – $8,000.
The Anthem X Advanced SL range is offered in three builds: the 3 at $4,800, the 2 at $5,600, and the 1 at $8,000. That spread places the bike in a broad premium short-travel segment, with the lower two builds likely to be the key options for riders interested in the new frame platform without pushing into top-end pricing. The price jump from the 2 to the 1 is substantial, so the middle build stands out on paper as the point where many buyers will look hardest for value.
Specific component details are not provided here, so the clearest takeaway is the structure of the range rather than the exact spec differences. What is consistent across the line is the underlying Advanced SL carbon frame, the 120mm rear / 130mm front travel concept, and the Anthem X-specific feature set including downtube storage. That means even the least expensive build gets the same core chassis and geometry concept as the top model, which is important on a bike where the frame design is a major part of the appeal.
