Transition Spire Carbon Eagle 90- 2026

Overview Get ready to be inSpired For those looking to take on the biggest terrain, we give you the Spire. Ready to go up, or down anything you put in front of it. The Spire blends DH bike capability with mid-travel efficiency in such a way it's almost two bikes in one. A delicately tuned pedaling and pumping platform, supple beginning stroke sensitivity and all the travel you could ask for makes for a mind bending ride. Happily climb up to your favorite challenging descent, then cruise on over to your local flow trail and you'll be rewarded on both ends of the spectrum. This multi-trick pony lives to push your limits Go Fast, Take Chances. The Spire has your back! Elevate your riding experience with the Spire's renowned geometry and 170mm of travel. Tackle that challenging move you've been avoiding, launch the double that once felt impossible, or glide effortlessly down your favorite flow trail, the Spire makes light work of difficult terrain. This confidence-inspiring bike was the ideal choice for Marco Osborne during the Stone King Rally, one of the most difficult blind enduros in the world, allowing him to charge full speed into the unknown and secure the win. While we may not all be as fast as Marco, the Spire is designed to help you push your limits while ensuring you keep it rubber side down. Get inSpired! Specs FRAME SPECIFICATIONS GENERAL SPECS WHEEL SIZE 29" SIZES SM, MD, LG, XL, XXL COMPONENT COMPATIBILITY FORK OFFSET 44mm FORK AXLE-TO-CROWN 584mm HEADSET (TOP) 56mm Zero Stack HEADSET (BOTTOM) 56mm Zero Stack BB 73mm BSA Threaded ISCG TABS ISCG05 CHAINRING MAXIMUM 34T Standard Single Ring (Based on 52mm Boost Chainline) CHAINLINE 52mm REAR BRAKE MOUNT 180mm Post Mount, Max Rotor Size 223mm DERAILLEUR HANGER SRAM UDH REAR AXLE Transition Axle For UDH, 12mm x 148mm Spacing SEAT CLAMP Carbon: 37.0mm Alloy: 34.9mm SEATPOST DIAMETER 31.6mm TIRE MAXIMUM 29 x 2.6 (*see FAQ) SUSPENSION SPECS FRONT TRAVEL 170mm (Compatible with 180mm single crown fork or dual crown forks on alloy only) REAR TRAVEL 170mm (Compatible with 160mm) SHOCK SIZE 205mm x 65mm (Compatible with 205mm x 60mm) SHOCK HARDWARE Trunnion Mount Top / 30mm x 8mm Bottom SAG SETUP 18mm-22mm BEARINGS 2x 6903, 2x 6902, 4x 6802, 2x 3802, 2x 6900 Geometry SPEED BALANCED GEOMETRY MEASUREMENT SM MD LG XL XXL HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW A.REACH 430 425 460 455 485 480 510 505 535 530 B.STACK 619 624 619 624 628 633 637 642 646 651 C.EFFECTIVE TOPTUBE LENGTH 547 550 577 580 605 608 633 636 661 664 D.SEATTUBE LENGTH 360 390 430 460 490 E.EFFECTIVE SEATTUBE ANGLE 79.6° 79.1° 78.8° 78.3° 78.1° 77.6° 77.5° 77° 77.2° 76.7° SADDLE HEIGHT FOR EFFECTIVE SEATTUBE ANGLE 600 660 720 780 820 ACTUAL SEATTUBE ANGLE 70.5° 70° 70.5° 70° 70.5° 70° 70.5° 70° 70.5° 70° SEATTUBE OFFSET AT BOTTOM BRACKET 100 100 100 100 100 F.HEADTUBE LENGTH 100 100 110 120 130 G.HEADTUBE ANGLE 63° 62.5° 63° 62.5° 63° 62.5° 63° 62.5° 63° 62.5° H.CHAINSTAY LENGTH 446 448 446 448 446 448 452 454 452 454 I.WHEELBASE 1227 1229 1257 1259 1287 1289 1322 1324 1352 1354 J.BOTTOM BRACKET DROP (FRONT) 25 32 25 32 25 32 25 32 25 32 K.ESTIMATED BOTTOM BRACKET HEIGHT 350 343 350 343 350 343 350 343 350 343 Build Specs SPECIFICATIONS SPEC AND PRICE BEING SUBJECT TO CHANGE WITHOUT NOTIFICATION COMPONENT SPECIFICATION FRAME Spire Carbon 170mm WHEEL SIZE 29" REAR SHOCK RockShox Vivid Ultimate (205x65mm) FORK RockShox ZEB Ultimate (170mm) HEADSET FSA NO.55R/57 STEM Burgtec Enduro MK3 35 (35mm) HANDLEBAR Burgtec Ride Wide Alloy Enduro SM (780x20mm) MD (780x30mm) LG/XL (800x38mm) GRIPS ODI Longneck V2.1 Lock-On SADDLE SDG Bel Air 3 SEATPOST OneUp Dropper Post SM (150mm) MD (190mm) LG (210mm) XL (240mm) SHIFTER SRAM Eagle 90 MMX BRAKES SRAM Maven Silver ROTORS SRAM Centerline (200mm) DERAILLEUR SRAM Eagle 90 CRANK SRAM Eagle 90 DUB (30t/165mm) CHAINGUIDE E*Thirteen Vario Chainguide - Enduro CHAIN SRAM GX Eagle Transmission CASSETTE SRAM XS 1275 (10-52t) RIMS DT Swiss EX 1700 Spline 30 SPOKES DT Swiss Competition HUBS DT Swiss 350 Ratchet 36 SL TIRE / FRONT Schwalbe Magic Mary, Radial, Trail Pro, Ultra Soft (2.5) TIRE / REAR Schwalbe Albert, Radial, Gravity Pro, Soft (2.5) INCLUDED Tubeless Valves & Sealant COLOR OPTIONS Galactic Black Ultra Violet WEIGHT 34.9 lbs / 15.84 kg (Size MD) Warranty WARRANTY COVERAGE At Transition Bikes we take pride in the quality of our products. Our frames are manufactured to withstand the rigors and abuse modern mountain bike trails can dish out. That said, anything can break given just the right amount of time, wear, or misfortune. Everyone here at Transition Bikes is committed to keeping you riding and we realize every warranty and or crash replacement situation is unique. It is our top priority here at Transition to get you up and running as quickly as possible with a fair and honest solution regardless of the situation. To view your bike's warranty policy please visit our support page and find your model and version/year: https://www.transitionbikes.com/Product-Support These policies apply to the original owner only. Transition Bikes will repair or replace any original purchasers individual frame parts or complete frame at our discretion. Due to unavoidable variations in paint batches, production runs, and natural aging (e.g., UV fade), slight differences in color or finish may occur between a replacement part and the original. While we aim for consistency, perfect color matching cannot be guaranteed. These variances are not considered defects and are not covered under warranty. You must register your frame on our site with your serial number and provide proof of purchase to qualify for a warranty. In the event of an issue with your frame Transition Bikes will determine whether it qualifies as a "Warranty Issue" or is covered under our "Crash Replacement Policy" (see below for details). In the event that you have to send back all or part of your frame under warranty, you are responsible for the shipping costs to get it to us and we will pay the return shipping. Our warranty policy does not cover: Any labor costs associated to the warranty claim. Modifications from stock configuration. Normal wear-and-tear damage. Paint damage caused by the removal of protective tapes or adhesives. Paint fade and/or damage caused by environmental factors (wind, water, sun, etc.). CRASH REPLACEMENT In addition to our warranty, all Transition Bikes frames are covered for life under our "Crash Replacement Policy" to the original or second hand owner. If for any reason you should find yourself with a damaged frame, you may send us the broken frame section and we will replace it for the best possible price we can, assuming we have the replacement part available. If we do not have the piece available we will attempt to work out a crash replacement price on a replacement frame set. The customer is responsible for all shipping costs to get the frame to and from Transition Bikes. WE GET IT - PEOPLE WHO RIDE OUR BIKES RIDE HARD Above is our official stance, since to some degree these things need to be spelled out. But our entire philosophy is based around being a rider-owned company, and we take that seriously. We're well aware that not every circumstance can be accounted for and not every case falls neatly into one of the above categories. We look at every warranty and crash replacement case with a fresh lens and treat every situation in the manner in which we would expect it to be handled. Our goal is to leave no rider who supports us without support in return. HOW TO SUBMIT A CLAIM USA/CANADA - To submit a Warranty/Crash Replacement Claim within the United States or Canada, you must have an account with us. Sign in to your existing account or create a new account: https://www.transitionbikes.com/Account Once you are signed in, click on Warranty Claims to submit a claim.