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Sorry - this product is no longer available

The Giant Reign 29 1 Mountain Bike is no longer available, although you may find similar or newer versions below.

Giant Reign 29 1 Mountain Bike 2021
  • 81225
Steep drops blind lines chunky singletrack through roots and rocks. This fierce 29er helps you tame the wildest enduro terrain with smooth suspension and confident handling. is a long-standing UK stockist and dealer of Giant bikes. We carry the full range of Giant Road and Mountain Bikes as well as clothing and accessories. To find out more about the full Giant range at, visit the Giant Bikes homepage here.

Steep drops blind lines chunky singletrack through roots and rocks. This fierce 29er helps you tame the wildest enduro terrain with smooth suspension and confident handling.

From the bike park to weekend enduros daily trail sessions to rowdy backcountry adventures this full-suspension 29er is ready for action. With a lightweight strong and dependable ALUXX SL frameset Reign 29 helps you conquer climbs and rail rugged descents with more confidence and control. It’s engineered with progressive geometry that’s optimized for its 29-inch wheels. That means shorter chainstays a longer toptube and headtube/seattube angles that put you in the perfect position to slay all types of singletrack. The updated Maestro suspension gives you 146mm of smooth active rear travel that features a trunnion mount shock and Advanced Forged Composite rocker arm. Add in a host of other aggressive trail riding technologies including a cleanly routed dropper seatpost and the latest Giant WheelSystem with Boost hub spacing and tubeless tyres and it’s ready to rip when you are.

Key Performance Factors

Race-bred suspension

Maestro rear suspension developed and tested under extreme conditions of Enduro World Series races. The trunnion mount shock has a longer stroke and smoother feel and the Advanced Forged Composite upper rocker arm adds stiffness while lowering overall frame weight.

Progressive enduro geometry

The frameset features enduro-ready geometry so you can ride aggressive descents and rail corners with confidence. The 64.56/76.36-degree headtube/seattube angles with a 170mm travel 42mm fork offset produce confident front-end handling with high-speed stability and control.

29er confidence and control

Larger 29-inch diameter wheels roll over rugged enduro terrain with improved balance and stability giving you the momentum to crank up tough climbs and the confidence to fly on fast technical descents.


SizesS M L XL
ColoursBlack Ti/Chrome
FrameALUXX SL-Grade Aluminium 146mm Maestro suspension
ForkFox 38 Performance Elite GRIP2 170mm 110x15 Kabolt tapered 44mm offset custom tuned for Giant
ShockFox X2 Performance 205/60 custom tuned for Giant
HandlebarGiant Contact SL TR35 800x35mm 20mm rise
StemGiant Contact SL 35
SeatpostGiant Contact Switch dropper post with remote 30.9
SaddleGiant Romero
ShiftersShimano Deore XT
Front DerailleurN/A
Rear DerailleurShimano Deore XT
BrakesShimano Deore
Brake LeversShimano Deore
CassetteShimano SLX 10-51

ChainKMC X-12
CranksetShimano Deore XT 32t with MRP AMG V2 guide
Bottom BracketShimano press fit
RimsGiant TR-1 29 WheelSystem
HubsGiant TR-1 29 WheelSystem
SpokesGiant TR-1 29 WheelSystem
Tyres[F] Maxxis Assegai 29x2.5 WT MaxxTerra EXO+ TR [R] Maxxis Minion DHR II 29x2.4 WT MaxxTerra EXO+ TR tubeless
Extrastubeless prepared

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