Transition Bikes

The Nimble Bruiser

Take on the biggest terrain without the penalty, Long travel doesn't have to mean single purpose

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, super 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. Don't be fooled though, while it's no one-trick pony, the Spire lives to push your limits. Get in-Spired.

AVAILABLE COLORS:

Factory Orange

Fade To Black

Raw

Hint Of Blue

SELECT BUILD

$3,799

$2,499 USD

$4,999

$3,499 USD

$5,999

$3,999 USD

$6,999

$5,499 USD

$2,399

$1,799 USD

$3,299

$2,599 USD

SELECT SIZE/COLOR

X-Large

Out of Stock

$3,799

$2,499 USD

This item is currently unavailable for online ordering.

If you'd like to purchase this item from a local Transition dealer, use this dealer locator tool and reach out to them to see what options are available.

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.

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PRICE

$3,799

$2,499 USD

$4,999

$3,499 USD

$5,999

$3,999 USD

$6,999

$5,499 USD

$2,399

$1,799 USD

$3,299

$2,599 USD

FRAME

Spire Alloy 170mm

Spire Carbon 170mm

Spire Alloy 170mm

Spire Carbon 170mm

WHEEL SIZE

29"

REAR SHOCK

Fox Float X Performance
(205x65mm)

Fox Float X Performance Elite
(205x65mm)

Fox Float X2 Factory
(205x65mm)

FORK

Marzocchi Bomber Z1 Air
(170mm)

Fox Float 38 Performance Elite
(170mm)

Fox Float 38 Factory
(170mm)

HEADSET

FSA NO.55R/57

FSA NO.55R/57
(Included)

STEM

RaceFace Aeffect R (40mm)

ANVL Swage (40mm)

HANDLEBAR

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

ANVL Mandrel Alloy 35
SM (800x20mm)
MD/LG/XL (800x30mm)
XXL(800x40mm)

OneUp Carbon
SM/MD (800x20mm)
LG/XL/XXL(800x35mm)

GRIPS

ODI Elite Flow

SADDLE

SDG Bel Air 3

SEATPOST

OneUp Dropper Post

BRAKES

SRAM Code R

TRP DH-R EVO

SRAM Code Ultimate Stealth

ROTORS

SRAM Centerline (220/200mm)

TRP R1 2.3 (223/203mm)

SRAM HS2 (220/200mm)

SHIFTER

SRAM NX Eagle MMX

SRAM GX Eagle

SRAM POD Ultimate Bridge MMX

DERAILLEUR

SRAM NX Eagle

SRAM GX Eagle

SRAM XO AXS Eagle Transmission

CASSETTE

SRAM PG 1230 (11-50t)

SRAM XG 1275 (10-52t)

SRAM XS 1295 T-Type (10-52t)

CHAIN

SRAM NX Eagle

SRAM GX Eagle

SRAM XO Eagle Transmission

CRANK

SRAM Descendent 6K DUB
(30t/165mm)

SRAM GX Eagle DUB
(30t/165mm)

SRAM XO Eagle DUB T-Type
(30t/165mm)

CHAINGUIDE

OneUp Bash Guide

RIMS

WTB ST i30

RaceFace Aeffect R

SPOKES

Pillar Double Butted

RaceFace 2.0/1.7/2.0

HUBS

Novatec D791SB-B15/D902SB-B12

RaceFace Trace 28H

RaceFace Trace 28h

RaceFace Trace 28H

TIRE/FRONT

Schwalbe Magic Mary
Super Trail, Soft (2.4)

Schwalbe Magic Mary
Super Trail, Soft (29x2.4)

TIRE/REAR

Schwalbe Big Betty
Super Trail, Soft (2.4)

Schwalbe Big Betty
Super Trail, Soft (29x2.4)

INCLUDED

Tubeless Valves & Sealant

COLOR OPTIONS

	Fade To Black
	Hint Of Blue

	Fade To Black
	Hint Of Blue

	Fade To Black
	Hint Of Blue

	Fade To Black
	Hint Of Blue

	Factory Orange
	Raw

	Fade To Black
	Hint Of Blue

WEIGHT

36.7 lbs / 16.65 kg (Size MD)

36.0 lbs / 16.33 kg (Size MD)

33.7 lbs / 15.29 kg (Size MD)

32.9 lbs / 14.92 kg (Size MD)

10.6 lbs / 4.81 kg (Size MD w/ Shock)

7.6 lbs / 3.45 kg (Size MD w/ Shock)

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.

Speed Balanced Geometry SBG 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 a 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.
	SM HIGH/LOW	MD HIGH/LOW	LG HIGH/LOW	XL HIGH/LOW	XXL 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	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

L.STAND OVER HEIGHT	685 / 680	700 / 695	715 / 710	730 / 725	745 / 740

M.FORK OFFSET	44	44	44	44	44

Frame Specifications

REAR TRAVEL:	170mm (Compatible with 160mm)

FRONT TRAVEL:	170mm (Compatible with 180mm single crown fork or dual crown forks on alloy only)

WHEEL SIZE:	29"

SIZES:	SM, MD, LG, XL, XXL

FRAME BEARINGS:	2x 6903, 2x 6902, 4x 6802, 2x 3802, 2x 6900

FORK AXLE TO CROWN:	584mm

FORK OFFSET:	44mm

REAR SHOCK SIZE:	205mm x 65mm (Compatible with 205mm x 60mm)

SHOCK HARDWARE:	Trunnion Mount Top / 30mm x 8mm Bottom

HEADSET (TOP):	56mm Zero Stack

HEADSET (BOTTOM):	56mm Zero Stack

BB SHELL:	73mm BSA Threaded

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

ISCG TABS:	ISCG05

SEATPOST DIAMETER:	31.6mm

SEAT CLAMP:	Carbon: 37.0mm Alloy: 34.9mm

MAX SEATPOST INSERTION:	Carbon: Small 200mm \| Medium 230mm \| Large 260mm \| XL 280mm \| XXL 300mm Alloy: Small 200mm \| Medium 230mm \| Large 270mm \| XL 300mm \| XXL 330mm

MAX CHAINRING SIZE:	34T Standard Single Ring (Based on 52mm Boost Chainline)

MAX TIRE SIZE:	29 x 2.6 (*see FAQ)

REAR SHOCK SAG:	170mm/65mm: 18-22mm (28-34%) 160mm/60mm: 16-20mm (27-33%)

OVERVIEW/BUY

BUILD SPECS

SBG GEOMETRY

FRAME SPECS

FAQ'S

SUPPORT/SETUP

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FAQ'S

SUPPORT/SETUP