Transition Bikes

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PBJ

100mm Front
26" Wheels
Alloy

PBJ 24

100mm Front
24" Wheels
Alloy

REGULATOR CX

150mm Rear / 160mm Front
Mixed Wheels
Carbon
Bosch CX

REGULATOR SX

150mm Rear / 160mm Front
Mixed Wheels
Carbon
Bosch SX

REPEATER PT

170mm Rear / 170mm Front
29" Wheels
Carbon
SRAM Powertrain

RELAY

160/170mm
29" & Mixed Wheels
Carbon & Alloy
Fazua Ride 60

SPIRE

170mm Rear / 170mm Front
29" Wheels
Carbon & Alloy

PATROL

160mm Rear / 160mm Front
Mixed Wheels
Carbon

SENTINEL

150mm Rear / 160mm Front
29" Wheels
Carbon & Alloy

SMUGGLER

130mm Rear / 140mm Front
29" Wheels
Carbon & Alloy

SPUR

120mm Rear / 120mm Front
29" Wheels
Carbon

SCOUT

150mm Rear / 150mm Front
27.5" Wheels
Alloy

TRANSAM

150mm Front
29" Wheels
Chromoly

TR11

200mm Rear / 200mm Front
Mixed Wheels
Alloy

BOTTLEROCKET

180/200mm
27.5" Wheels
Alloy

SCOUT

150mm Rear / 150mm Front
27.5" Wheels
Alloy

RIPCORD

130mm Rear / 130mm Front
24" Wheels
Alloy

PBJ 24

100mm Front
24" Wheels
Alloy

BANDIT

100mm Front
20" Wheels
Alloy

Get'em while they're hot!

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BIKES

GEAR

DEALERS

DEMO

WHAT'S UP!

ABOUT

SUPPORT

SUPPORT/SETUP

Spire Carbon Ultraviolet Eagle 90 Complete

Spire Carbon Galactic Black Eagle 90 perspective Complete

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.

AVAILABLE COLORS:

Galactic Black

Ultra Violet

SELECT BUILD

$4,199 USD

$5,599 USD

$7,699 USD

$2,599 USD

$3,799 USD

SELECT SIZE/COLOR

Small

Ships Now

Small

Ships Now

Medium

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Medium

Out of Stock

Large

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Large

Ships Now

X-Large

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X-Large

Ships Now

$4,199 USD

IN STOCK: Ships within 2 business days

FREE SHIPPING: We offer free shipping on all bikes and frames, see checkout for additional details.

SHIP TO DEALER: If you prefer picking your bike up from your local authorized Transition Bikes dealer with free professional assembly, please make sure you choose Ship To Dealer during check out.

Add To Cart

Find a Dealer

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PRICE

$4,199 USD

$5,599 USD

$7,699 USD

$2,599 USD

$3,799 USD

FRAME

Spire Alloy 170mm

Spire Carbon 170mm

Spire Alloy 170mm

Spire Carbon 170mm

WHEEL SIZE

29"

REAR SHOCK

RockShox Super Deluxe Base
(205x65mm)

RockShox Super Deluxe Ultimate
(205x65mm)

RockShox Vivid Ultimate
(205x65mm)

FORK

RockShox Domain Gold RC
(170mm)

RockShox ZEB Ultimate
(170mm)

HEADSET

FSA NO.55R/57

FSA NO.55R/57
(Included)

STEM

RaceFace Aeffect R (40mm)

Burgtec Enduro MK3 35 (35mm)

HANDLEBAR

RaceFace Chester 35
SM(780x20mm)
MD/LG/XL(780x35mm)

Burgtec Ride Wide Alloy Enduro
SM(800x20mm)
MD(780x30mm)
LG/XL(800x38mm)

GRIPS

ODI Longneck V2.1 Lock-On

SADDLE

SDG Bel Air 3

SEATPOST

SDG Tellis
SM(150mm)
MD(170mm)
LG(200mm)
XL(230mm)

OneUp Dropper Post
SM(150mm)
MD(190mm)
LG(210mm)
XL(240mm)

BRAKES

SRAM Maven Base

SRAM Maven Bronze

SRAM Maven Silver

ROTORS

SRAM Centerline (200mm)

SHIFTER

SRAM Eagle 70 MMX

SRAM Eagle 90 MMX

DERAILLEUR

SRAM Eagle 70

SRAM Eagle 90

CASSETTE

SRAM XS 1270 (10-52t)

SRAM XS 1275 (10-52t)

CHAIN

SRAM Eagle 70

SRAM GX Eagle Transmission

CRANK

SRAM Eagle 70 DUB
(30t/165mm)

SRAM Eagle 90 DUB
(30t/165mm)

CHAINGUIDE

E*Thirteen Vario Chainguide - Enduro

RIMS

WTB ST i30

DT Swiss E 1900 Spline 30

DT Swiss EX 1700 Spline 30

SPOKES

Pillar Double Butted

DT Swiss Champion

DT Swiss Competition

HUBS

Novatech D791SB/D902SB

DT Swiss 370 Ratchet LN

DT Swiss 350 Ratchet 36 SL

TIRE/FRONT

Maxxis Assegai
3C EXO/TR (2.5)

Schwalbe Magic Mary
Radial, Trail Pro, Ultra Soft (2.5)

TIRE/REAR

Maxxis Minion DHRII
3C EXO/TR (2.4)

Schwalbe Albert
Radial, Gravity Pro, Soft (2.5)

INCLUDED

Tubeless Valves & Sealant

COLOR OPTIONS

	Galactic Black
	Ultra Violet

	Galactic Black
	Ultra Violet

	Galactic Black
	Ultra Violet

	Galactic Black
	Ultra Violet

	Galactic Black
	Ultra Violet

WEIGHT

34.9 lbs / 15.84 kg (Size MD)

Specs are subject to change at any time. All complete bikes are 95% assembled and packaged for quick and easy final assembly, and as such, Transition Bikes is not able to make special request build spec changes or modifications to packaging.

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!

Lifetime Warranty

At Transition Bikes we take pride in the quality of our products and are stoked to offer a lifetime warranty for the original owner and our stellar crash replacement program. We got your back so you don't have to worry about your bike.

Speed Balanced Geometry
	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

GIDDYUP
SUSPENSION
DESIGN

We want to make it as easy as possible to experience great rear suspension performance. The GiddyUp suspension system is designed to behave intuitively across a broad range of setup. Because, we get it, sometimes you just want to grab your bike and GiddyUp, without checking your setup. When you do, it will always feel good.

Suspension Illustration

With nearly 23% progression and the most current evolution of our GiddyUp suspension kinematic, the Spire has an excellent balance of support and small bump sensitivity. Anti-squat is tuned to enhance pedaling performance and provides a platform to push against when pumping, without sacrificing a bottomless feel when needed.

The GiddyUp suspension layout is tuned to work correctly with both air and coil rear shocks. Riders are able to add or remove volume spacers in the rear air shock to suit their individual riding style and there is plenty of bottom out control with air or coil shocks when things get rowdy. The Spire has 170mm of rear wheel travel when used with the supplied 205mm x 65mm stroke shock. It is also possible to install a shorter, 205mm x 60mm stroke shock to decrease the rear wheel travel to 160mm if you are after a shorter travel experience.

A suggested sag range of 27 - 33% allows the rider to tune the feel of the bike; from a firm and snappy jump and slash mode, to a more supple and active full on party mode. Wherever you end up, you can focus on the trail without remotes, levers or knobs. Just grab your bike and GiddyUp.

The Spire makes an excellent argument for an aggressive do it all bike. I'm going to avoid any of the well worn clichés and say that I'm impressed with how easy the Spire is to pedal around all day, while still being perfectly comfortable smashing the bike park to bits. I've long said an aggressive 150 mm travel bike is the ideal middle ground, one bike for most folks. The Spire makes me seriously rethink that position. With how well the Spire pedals, reasonable weight, and aggressive geometry why not have this with more travel? It's just so much fun to ride everywhere. - NSMB.com - FULL REVIEW HERE

MTB Mag Icon

All in all, I had a blast on this bike and would happily ride one as a personal rig. While I was truly won over by the Spire's DNA through and through, perhaps what's most impressive its value - particularly in this specific model. Having flagship suspension and brakes with a very nice cockpit and tires on a sub $5k bike is really something you don't see very often. The bang for the buck is up there with what consumer direct brands offer, but it's also worth taking a second to reflect on the phenomenal support Transition offers as it is an aspect that doesn't quite receive the credit that is due. - MTB-MAG.com - FULL REVIEW HERE

Vital Icon

The Spire pedals and cruises along extremely well. The large wheelbase is evident but is not an overpowering theme when navigating mellower terrain. The little bit we were able to let the Spire off the leash, it wanted to build speed, like, right now! With the progression Transition has put on this suspension platform, the Spire has some pop while still erasing small to medium sized trail obstacles." - VitalMTB.com - FULL REVIEW HERE

Pinkbike Icon

"The Spire manages to do one of the most basic and fundamental things a good mountain bike should do - it should make you smile, and it delivers in droves. The way the bike tracks and hunkers down when riding rough terrain is very confidence inspiring. It just makes you feel like you can bulldoze anything. For a bike that makes you think you can climb any hill of your choosing, this is doubly impressive." - Pinkbike.com Field Test - FULL REVIEW HERE

Freehub Logo

"Overall, the Spire is an all-mountain brawler. It’s not the lightest ride to spin up to the top of a mountain, but it’s hard to imagine a more stable trail bike for the way back down. The Spire would be just as at home at the Whistler Bike Park as it would be climbing to a gnarly double-black backcountry descent—so long as its pilot doesn't mind putting in a tiny bit of extra strength getting it there." - Freehub Magazine - FULL REVIEW HERE

Frame Specifications

GENERAL SPECS
WHEEL SIZE:	29"

SIZES:	SM, MD, LG, XL, XXL

COMPONENT COMPATABILITY
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

FAQ'S

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OVERVIEW/BUY

BUILD SPECS

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FRAME SPECS

FAQ'S

SUPPORT/SETUP

Transition Spire Enduro Mountain Bike