(no reviews)Product ID: 260681
Giant Reign SX Mountain Bike 2023 - Downhill Full Suspension MTB
Dial in the frame geometry for your riding style and terrain, then let it rip. This new shapeshifter enduro bike delivers confidence and control on the rowdiest terrain. Its mixed wheel size, 29-inch front and 27.5 rear, blends stability and speed with agility that pops.
This gravity-focused enduro machine features a lightweight, stiff and super-strong ALUXX SL frameset paired with our latest Maestro rear suspension. The frameset is optimized for its mixed wheel setup, with a 27.5-inch rear and 29-inch front. A plush suspension system with 165mm in the rear and a 190mm triple crown fork up front gives you the ability to send it on the roughest descents. You can also adjust frame geometry with a flip chip that lets you switch the head tube and seat tube angles, along with bottom bracket drop, to dial in the handling for your riding style and terrain. And a new integrated down tube storage feature provides convenient carrying capacity for on-trail essentials.
Race-bred suspension
The Maestro rear suspension eats up enduro terrain with 165mm of smooth, active rear travel matched with a 190mm travel fork. The trunnion mount rear shock has a longer stroke (65mm over 60mm on the previous generation) while the Advanced Forged Composite upper rocker arm adds stiffness and lowers overall frame weight.
Adjustable enduro geometry
New flip chip feature lets you adjust frame geometry depending on the terrain. You can select a 63.1 or 63.5-degree head angle and corresponding 77.9 or 78.3-degree seat tube angle, resulting in a 25 or 19mm bottom bracket drop (size medium) to fine-tune handling for varying trail conditions and riding style.
Mixed wheel size
A 29-inch front wheel provides speed, stability and front-end control on rough, technical trails. A 27.5-inch rear wheel adds agility and maneuverability to help riders rail corners, pop over features and show off their style.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | ALUXX SL-Grade Aluminum front and rear triangles, Advanced Forged Composite rocker link, 165mm Maestro suspension, OverDrive (1 1/8" - 1 1/2"), BB89.5, UDH, 12x148mm thru-axle, 27.5-inch rear wheel dedicated, flip chip - Maestro 3 |
| Fork | Fox 40 Performance, GRIP damper, 190mm, 20x110 |
| Rear Shock | Fox DHX2 Performance Elite, 205/65 M:400lbs, L:450lbs |
| Stem | TruVativ Descendant Direct Mount 35, 50mm |
| Bars | Giant Contact SL TR35, 800x35mm, 20mm rise |
| Front Brake | SRAM Code R, hydraulic, CenterLine rotors [F]220mm, [R]203mm |
| Rear Brake | SRAM Code R, hydraulic, CenterLine rotors [F]220mm, [R]203mm |
| Brake Lever | SRAM Code R |
| Front Mech | N/A |
| Rear Mech | Shimano Deore RD-M5120 |
| Shifters | Shimano Deore SL-M4100, 1x10 |
| Speed | 10 |
| Rims | [F] Giant AM 29, ETRTO: 30-622, tubeless ready (TL tape and valve included), alloy [R] Giant AM 27.5, ETRTO: 30-584, tubeless ready (TL tape and valve included), alloy |
| Front Hub | Alloy, sealed |
| Rear Hub | Giant, cartridge bearing, 6-bolt [R] Giant, cartridge bearing, 6-bolt |
| Spokes | Sapim Leader |
| Front Tyre | Maxxis Assegai 29x2.5 WT, 3C MaxxTerra, EXO+, TR |
| Rear Tyre | Maxxis Minion DHR II 27.5x2.5 WT, 3C MaxxTerra, DD, TR tubeless |
| Seat Post | Giant Contact, 30.9mm, 400mm |
| Saddle | Giant Romero |
| Chainset | Praxis Cadet M24, 32t, 165mm, 55mm chainline |
| Bottom Bracket | Praxis, press fit |
| Chain | KMC X10, w/ Missing Link |
| Cassette | Shimano Deore M4100, 11x-46T |
| Pedals | Resin Platform Pedals |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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