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Transition Spire Alloy GX Complete Mountain Bike 2025

sku# 247137
Transition - Spire Alloy GX Complete Mountain Bike 2025
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Product Info

Oh, Showcase Showdown! Before you even have time to think, there's a quick left turn that leads into a chunky traverse over the first rock roll. Feather your brakes a bit as you stretch up and peer over, looking to see if it goes. It does, you know it does, but it's always hard to avoid hesitation. By the time you're past the point of no return, you're bracing for the dirt ramp back onto the trail surface. It's gone, beaten down by a couple seasons of bottom-outs. You exhale as you smash through at warp speed, careening towards the next ridiculously steep triple-decker rocky chute-to-right handed catch berm. The Transition Spire Alloy GX Complete Mountain Bike was made for this trail: steep, rough, and fast. Hang on and let it flow.

Product Details

Key Features

6061 Aluminum Alloy FrameKnown for its durability, strength, and ride quality, aluminum is real!

Travel170mm Front / 170mm Rear

Wheel Size29"

Speed Balanced GeometrySBG ensures the bike maintains low speed agility, front wheel traction, and proper rider weight balance while actually increasing confidence in steep terrain and at high speeds. With SBG, a slacker head tube angle is combined with an all new reduced offset fork standard, preventing the front wheel from being too far in front of the rider. This improves front to rear weight distribution on the bike, which is often out of balance on long and slack bikes. One of SBG's greatest benefits is that it creates a confident steering feel that adapts to wheel speed. More stability when going fast, more agility on technical slow speed maneuvering as well as improved traction, control and confidence for any skill level of rider.

GiddyUp 2.0HH SuspensionBuilding upon the success of Transition's original GiddyUp suspension design, the new GiddyUp 2.0HH system has been refined for the modern two-wheel cowboy delivering a slightly firmer feel for more efficient pedaling, as well as more progressive travel that provides that extra little bit of bottom-out support when needed.

Geo Adjust ChipChange the attitude of the bike with a simple flip of a chip. High and Low settings give you two very usable geo settings to suit your riding style: High is comparable to most other companies' low settings so there's a high shred warning in effect!

Pivot TechnologyCollet main pivot technology improves rear end stiffness and keeps hardware tight. Bearing shields prevent main pivot contamination from water.

Frame ProtectionFully integrated, flush-mounted rubber frame protection on the chainstay and downtube keep your bike rides quiet and your frame safe from damage.

Dual Crown Fork CompatibleThis frame is fully dual crown compatible, for those wanting to dip their toes into the DH world.

User Friendly Cable RoutingTo simplify maintenance and keep your bike noise free, the rear derailleur cable is routed through guide tubes in the front triangle and chainstay.

Universal Derailleur HangerSRAM's Universal Derailleur Hanger is available at almost every bike shop, should something go wrong.

Badass BearingsEnduroMAX suspension pivot specific bearings come in standard sizes that are readily available worldwide.

Gear Accessory MountAn underside top-tube accessory mount allows you to carry a spare tube or other goodies safely on your frame.

Water Bottle CompatibilityYour water bottle is kept clean inside the front triangle so you can keep hydrated without worrying about mud making it to your mouth.

Size Specific ChainstaysThe Patrol has two size specific chainstay lengths to provide balanced handling and rider weight distribution across the range of sizes.

Specs

  • Biking Type: Mountain More 
    Mountain
  • Used For: Enduro, Downhill More 
    Enduro Downhill
  • Suspension: Full Suspension More 
    Full Suspension
  • Frame Material: Aluminum Alloy More 
    Aluminum Alloy
  • Gearing: 1 x 12
  • Water Bottle Mounts: 1
  • Fork: Fox 38 Performance Elite More 
  • Stanchion Diameter (mm): 38
  • Fork Travel (mm): 170
  • Rear Shock: Fox Float X Performance Elite More 
  • Rear Travel (mm): 170
  • Shifters: SRAM GX Eagle More 
  • Rear Derailleur: SRAM GX Eagle, 12-Speed More 
  • Crankset: SRAM GX Eagle DUB, 30t More 
  • Cassette: SRAM GX Eagle XG-1275, 10-52t More 
  • Chain: SRAM GX Eagle, 12-Speed More 
  • Bottom Bracket: SRAM DUB 68/73mm Threaded
  • Pedals: Not Included
  • Brake Levers: TRP DH-R EVO More 
  • Brake Calipers: TRP DH-R EVO
  • Rotors: TRP DH-R-Evo | 223mm
  • Headset: FSA No.55R/57
  • Handlebar: ANVL Mandrel Alloy 35 SM (800x20) MD/LG/XL (800x30) XXL (800x40)
  • Bar Tape/Grips: ODI Elite Flow
  • Stem: ANVL Swage 40mm
  • Saddle: SDG Bel Air 3
  • Seatpost: OneUp Dropper More 
  • Hubs: RaceFace Trace 28H
  • Rims: RaceFace Aeffect R
  • Front Tire: Schwalbe Magic Mary 2.4" | Super Trail, Soft More 
  • Rear Tire: Schwalbe Big Betty 2.4" | Super Trail, Soft More 
  • Warranty: Limited Lifetime (Frame)
Size S M L XL
Reach (mm) 425 455 480 505
Stack (mm) 624 624 633 642
Effective Top Tube (mm) 550 580 608 636
Seat Tube (mm) 360 390 430 460
Head Tube Angle (°) 62.5 62.5 62.5 62.5
Seat Tube Angle (°) 79.1 78.3 77.6 77
Chainstay Length (mm) 448 448 448 454
Bottom Bracket Height (mm) 343 343 343 343
Bottom Bracket Drop (mm) 32 32 32 32
Head Tube Length (mm) 100 100 110 120
Wheelbase (mm) 1226 1259 1289 1324
Standover Height (mm) 680 695 710 725
Wheel Size 29" 29" 29" 29"

Other Notes

Transition products can only be shipped within the United States

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