Giant

XTC SLR 29 1

The Giant XTC SLR 29 1 in Abyss Black is the pinnacle of Giant’s aluminium hardtail engineering, designed specifically for cross-country racing and high-speed trail efficiency. Built with ALUXX SLR-grade aluminium—the lightest and highest-strength alloy Giant produces—this frame uses microscopic grain manipulation to achieve thinner, lighter tube shapes without sacrificing stiffness. The result is a chassis that rivals the weight of many carbon competitors while providing the aggressive, "snap" acceleration needed for race starts and technical climbs. The Abyss Black colourway gives it a sleek, stealthy aesthetic, letting the bike's performance do the talking.
For the 2025/2026 season, the XTC SLR 1 is a "race-ready" package out of the box. It features the Giant Crest 34 RRL air fork, which uses a beefier 34mm chassis (typically found on trail bikes) to ensure steering precision during high-torque XC efforts, controlled by a handlebar-mounted remote lockout. Unlike many pure XC bikes, Giant has equipped this model with a Contact Switch dropper post, acknowledging that modern cross-country courses are becoming increasingly technical. Combined with a full Shimano SLX 1x12 drivetrain and high-volume 2.4" Maxxis Recon Race tires, this bike is built to carry maximum momentum through every corner and rock garden.
Frameset & Fork
- Frame: ALUXX SLR-grade Aluminum, 12x148mm thru-axle, OverDrive steerer, Internal Cable Routing.
- Fork: Giant Crest 34 RRL, 100mm, 15x110mm, Remote Lockout.
- Seatpost: Giant Contact Switch Core dropper post, remote (Travel: 100mm S/M, 120mm L/XL).
- Saddle: Giant ErgoContact Trail.
- Colour: Abyss Black.
Drivetrain & Brakes
- Shifters: Shimano SLX M-7100, 1x12-speed.
- Front Derailleur: N/A.
- Rear Derailleur: Shimano SLX M7100, Shadow+.
- Brake System: Shimano BR-MT500, Hydraulic Disc.
- Rotors: Shimano RT-10 Centerlock, [F]180mm, [R]160mm.
- Crankset: Shimano SLX, 32T.
- Cassette: Shimano SLX, 10-51T.
- Chain: KMC X-12.
Wheels & Tires
- Rims: Giant XCT 29, 25mm inner width, Alloy, Tubeless Ready.
- Hubs: Shimano C500, Sealed Bearing, [F] 15x110mm [R] 12x148mm.
- Tires: Maxxis Recon Race 29x2.4", Foldable, TLR, EXO, Tubeless.
Key Highlights
- ALUXX SLR Technology: This is Giant’s "pro-level" aluminium. It uses 6011 alloy and advanced butting to create a frame that is roughly 20% thinner and lighter than their standard ALUXX SL frames, delivering an incredible power-to-weight ratio.
- Shimano SLX 1x12 Groupset: Known as the "workhorse" of the Shimano line, the SLX drivetrain provides the same Hyperglide+ shifting technology as the top-tier XT and XTR, allowing you to shift under load during steep climbs without backing off the power.
- Trail-Ready 2.4" Tires: While most XC bikes stick to narrow 2.1" or 2.25" rubber, the SLR 1 runs 2.4" Maxxis Recon Race tires. This provides a much larger air volume, allowing for lower pressures that increase grip and comfort over roots and chatter.
- Integrated Dropper Post: Rare on a dedicated alloy XC racer, the inclusion of a remote dropper post reflects modern "downcountry" trends. It allows you to instantly drop the saddle for steep descents, significantly increasing your confidence and safety on technical terrain.
We offer shipping rates as follows:
- £4.99 delivery fee on orders under £100 (excluding bikes and large items)
- FREE delivery on orders over £100 (excluding bikes and large items)
- Personal bike delivery available within a 30-mile radius of our shop for a £60 delivery fee
Please view our full delivery and returns policy for further details.

Description

The Giant XTC SLR 29 1 in Abyss Black is the pinnacle of Giant’s aluminium hardtail engineering, designed specifically for cross-country racing and high-speed trail efficiency. Built with ALUXX SLR-grade aluminium—the lightest and highest-strength alloy Giant produces—this frame uses microscopic grain manipulation to achieve thinner, lighter tube shapes without sacrificing stiffness. The result is a chassis that rivals the weight of many carbon competitors while providing the aggressive, "snap" acceleration needed for race starts and technical climbs. The Abyss Black colourway gives it a sleek, stealthy aesthetic, letting the bike's performance do the talking.
For the 2025/2026 season, the XTC SLR 1 is a "race-ready" package out of the box. It features the Giant Crest 34 RRL air fork, which uses a beefier 34mm chassis (typically found on trail bikes) to ensure steering precision during high-torque XC efforts, controlled by a handlebar-mounted remote lockout. Unlike many pure XC bikes, Giant has equipped this model with a Contact Switch dropper post, acknowledging that modern cross-country courses are becoming increasingly technical. Combined with a full Shimano SLX 1x12 drivetrain and high-volume 2.4" Maxxis Recon Race tires, this bike is built to carry maximum momentum through every corner and rock garden.
Frameset & Fork
- Frame: ALUXX SLR-grade Aluminum, 12x148mm thru-axle, OverDrive steerer, Internal Cable Routing.
- Fork: Giant Crest 34 RRL, 100mm, 15x110mm, Remote Lockout.
- Seatpost: Giant Contact Switch Core dropper post, remote (Travel: 100mm S/M, 120mm L/XL).
- Saddle: Giant ErgoContact Trail.
- Colour: Abyss Black.
Drivetrain & Brakes
- Shifters: Shimano SLX M-7100, 1x12-speed.
- Front Derailleur: N/A.
- Rear Derailleur: Shimano SLX M7100, Shadow+.
- Brake System: Shimano BR-MT500, Hydraulic Disc.
- Rotors: Shimano RT-10 Centerlock, [F]180mm, [R]160mm.
- Crankset: Shimano SLX, 32T.
- Cassette: Shimano SLX, 10-51T.
- Chain: KMC X-12.
Wheels & Tires
- Rims: Giant XCT 29, 25mm inner width, Alloy, Tubeless Ready.
- Hubs: Shimano C500, Sealed Bearing, [F] 15x110mm [R] 12x148mm.
- Tires: Maxxis Recon Race 29x2.4", Foldable, TLR, EXO, Tubeless.
Key Highlights
- ALUXX SLR Technology: This is Giant’s "pro-level" aluminium. It uses 6011 alloy and advanced butting to create a frame that is roughly 20% thinner and lighter than their standard ALUXX SL frames, delivering an incredible power-to-weight ratio.
- Shimano SLX 1x12 Groupset: Known as the "workhorse" of the Shimano line, the SLX drivetrain provides the same Hyperglide+ shifting technology as the top-tier XT and XTR, allowing you to shift under load during steep climbs without backing off the power.
- Trail-Ready 2.4" Tires: While most XC bikes stick to narrow 2.1" or 2.25" rubber, the SLR 1 runs 2.4" Maxxis Recon Race tires. This provides a much larger air volume, allowing for lower pressures that increase grip and comfort over roots and chatter.
- Integrated Dropper Post: Rare on a dedicated alloy XC racer, the inclusion of a remote dropper post reflects modern "downcountry" trends. It allows you to instantly drop the saddle for steep descents, significantly increasing your confidence and safety on technical terrain.

XTC SLR 29 1

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