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:

HUCKLEBERRY (CARBON)		PRIMER GRAY (CARBON)
Factory Orange (Alloy)		Raw (Alloy)

STEP 1. SELECT BUILD

$6,699 USD

$5,999 USD

$5,599 USD

$4,899 USD

$3,799 USD

$3,999 USD

$3,399 USD

$2,299 USD

STEP 2. SELECT SIZE AND COLOR

Small

(ETA: September)

Small

(ETA: September)

Medium

(ETA: September)

Medium

(ETA: September)

Large

(ETA: September)

Large

(ETA: 3+ Months)

X-Large

(ETA: September)

X-Large

(ETA: 3+ Months)

XX-Large

(ETA: September)

XX-Large

(ETA: 3+ Months)

$6,699.00 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.


FRAME	Spire Carbon 170mm	Spire Carbon 170mm	Spire Alloy 170mm	Spire Alloy 170mm	Spire Alloy 170mm	Spire Alloy 170mm	Spire Carbon 170mm	Spire Alloy 170mm
REAR SHOCK	Fox Float X2 Factory 2 Position (205x65)	RockShox Super Deluxe Ultimate Air (205x65)	Fox Float X2 Factory 2 Position (205x65)	RockShox Super Deluxe Ultimate Air (205x65)	Fox Float X Performance 2 Position (205x65)	Fox Float X Performance 2 Position (205x65)	Fox Float X2 Factory 2 Position (205x65)	Fox Float X2 Factory 2 Position (205x65)
FORK	Fox Float 38 Grip 2 Factory 170mm Travel/44mm Offset	RockShox ZEB Ultimate 170mm Travel/44mm Offset	Fox Float 38 Grip 2 Factory 170mm Travel/44mm Offset	RockShox ZEB Ultimate 170mm Travel/44mm Offset	Marzocchi Bomber Z1 Air 170mm Travel/44mm Offset	Marzocchi Bomber Z1 Air 170mm Travel/44mm Offset
HEADSET	FSA NO.55R/57	FSA NO.55R/57	FSA NO.55R/57	FSA NO.55R/57	FSA NO.55R/57	FSA NO.55R/57	FSA NO.55R/57 (included)	FSA NO.55R/57 (included)
STEM	ANVL Swage (40mm)	ANVL Swage (40mm)	ANVL Swage (40mm)	ANVL Swage (40mm)	RaceFace Aeffect R (40mm)	RaceFace Aeffect R (40mm)
HANDLEBAR	ANVL Mandrel Alloy 35 SM (800x20) MD/LG/XL (800x30) XXL (800x40)	ANVL Mandrel Alloy 35 SM (800x20) MD/LG/XL (800x30) XXL (800x40)	ANVL Mandrel Alloy 35 SM (800x20) MD/LG/XL (800x30) XXL (800x40)	ANVL Mandrel Alloy 35 SM (800x20) MD/LG/XL (800x30) XXL (800x40)	RaceFace Chester 35 SM (780x20) MD/LG/XL/XXL (780x35)	RaceFace Chester 35 SM (780x20) MD/LG/XL/XXL (780x35)
GRIPS	Sensus Lite	Sensus Lite	Sensus Lite	Sensus Lite	Sensus Lite	Sensus Lite
SADDLE	ANVL Forge Cromo	ANVL Forge Cromo	ANVL Forge Cromo	ANVL Forge Cromo	ANVL Forge Cromo	ANVL Forge Cromo
SEATPOST	OneUp Dropper Post	OneUp Dropper Post	OneUp Dropper Post	OneUp Dropper Post	OneUp Dropper Post	OneUp Dropper Post
BRAKES	Shimano XT M8120	SRAM Code RSC	Shimano XT M8120	SRAM Code RSC	Shimano Deore M6120	SRAM Code R or SRAM Guide RE 4-Piston
ROTORS	Shimano RT86 (203mm)	SRAM Centerline (220mm/200mm)	Shimano RT86 (203mm)	SRAM Centerline (220mm/200mm)	Shimano RT70 (203mm)	SRAM Centerline (220mm/200mm)
SHIFTER	Shimano XT M8100	SRAM GX Eagle	Shimano XT M8100	SRAM GX Eagle	Shimano Deore M6100	SRAM NX Eagle MMX
DERAILLEUR	Shimano XT M8100	SRAM GX Eagle	Shimano XT M8100	SRAM GX Eagle	Shimano Deore M6100	SRAM NX Eagle
CASSETTE	Shimano XT M8100 (10-51t)	SRAM XG 1275 (10-52t)	Shimano XT M8100 (10-51t)	SRAM XG 1275 (10-52t)	Shimano Deore M6100 (10-51t)	SRAM PG 1230 (10-50t)
CHAIN	Shimano XT M8100	SRAM GX Eagle	Shimano XT M8100	SRAM GX Eagle	Shimano Deore M6100	SRAM NX Eagle
CHAINGUIDE	OneUp Bash Guide	OneUp Bash Guide	OneUp Bash Guide	OneUp Bash Guide	OneUp Bash Guide	OneUp Bash Guide
CRANK	Shimano XT M8100 (30t/165mm)	SRAM GX Alloy DUB (30t/165mm)	Shimano XT M8100 (30t/165mm)	SRAM GX Alloy DUB (30t/165mm)	RaceFace Aeffect R (30t/165mm)	SRAM Descendent 6K DUB (30t/165mm)
RIMS	DT Swiss EX 1700 Spline 30	Stans Flow S1	DT Swiss EX 1700 Spline 30	Stans Flow S1	Stans Flow D	Stans Flow D
SPOKES	DT Swiss Competition	Sapim Race Double Butted	DT Swiss Competition	Sapim Race Double Butted	Pillar Double Butted	Pillar Double Butted
HUBS	DT Swiss 350 Straight Pull 36SL	Stans Neo Durasync	DT Swiss 350 Straight Pull 36SL	Stans Neo Durasync	Shimano MT410-B	Novatec D791SB-B15/D902SB-B12
TIRE/FRONT	Schwalbe Magic Mary, Super Trail, Soft (29x2.4)	Schwalbe Magic Mary, Super Trail, Soft (29x2.4)	Schwalbe Magic Mary, Super Trail, Soft (29x2.4)	Schwalbe Magic Mary, Super Trail, Soft (29x2.4)	Schwalbe Magic Mary, Super Trail, Soft (29x2.4)	Schwalbe Magic Mary, Super Trail, Soft (29x2.4)
TIRE/REAR	Schwalbe Big Betty, Super Trail, Soft (29x2.4)	Schwalbe Big Betty, Super Trail, Soft (29x2.4)	Schwalbe Big Betty, Super Trail, Soft (29x2.4)	Schwalbe Big Betty, Super Trail, Soft (29x2.4)	Schwalbe Big Betty, Super Trail, Soft (29x2.4)	Schwalbe Big Betty, Super Trail, Soft (29x2.4)
INCLUDED	Tubeless Valves & Stans Sealant (6oz)	Tubeless Valves & Stans Sealant (6oz)	Tubeless Valves & Stans Sealant (6oz)	Tubeless Valves & Stans Sealant (6oz)	Tubeless Valves & Stans Sealant (6oz)	Tubeless Valves & Stans Sealant (6oz)
WEIGHT	33.8 lbs / 15.33 kg (Size MD)	33.3 lbs / 15.1 kg (Size MD)	36.8 lbs / 16.92 kg (Size MD)	36.3 lbs / 16.46 kg (Size MD)	36.44 lbs / 16.53 kg (Size MD)	36.7 lbs / 16.65 kg (Size MD)	7.6 lbs / 3.45 kg (Size MD w/shock)	10.6 lbs / 4.81 kg (Size MD w/shock)
	Specs are subject to change at any time.

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 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.
	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 TT LENGTH	547 / 550	577 / 580	605 / 608	633 / 636	661 / 664

D. SEAT TUBE LENGTH	360	390	430	460	490

E. EFFECTIVE ST ANGLE	79.6° / 79.1°	78.8° / 78.3°	78.1° / 77.6°	77.5° / 77°	77.2° / 76.7°

SADDLE HEIGHT FOR EFFECTIVE ST ANGLE	600	660	720	780	820

ACTUAL ST ANGLE	70.5° / 70°	70.5° / 70°	70.5° / 70°	70.5° / 70°	70.5° / 70°

SEAT TUBE OFFSET AT BB	100	100	100	100	100

F. HEAD TUBE LENGTH	100	100	110	120	130

G. HEAD TUBE 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 BB 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 FEATURES

1. 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.

2. Frame Material
The Spire carbon uses premium Japanese Toray fiber using a unique latex coated EPS molding process to create tighter edge radius control using less material. The Spire alloy features a frame made from tough and dependable heat treated 6061 aluminum to strike the right balance of strength, durability and ride quality.

3. Pivot Technology
Collet main pivot technology improves rear end stiffness and keeps your pivot hardware tight. Additional bearing shields prevent main pivot bearing contamination when washing your bike or riding in wet conditions.

4. Frame Protection
We keep your bike rides quiet and your frame safe from damage with fully integrated, flush-mounted rubber frame protection at all critical areas. In addition to downtube and seatstay protection, the ribbed chainstay protector features expanded coverage of the rear dropout pivot area.

5. Geo Adjust Chip
Change the attitude of the bike with a simple flip of a chip. Our high and low settings give you two very usable geo settings to suite your riding style. Our high setting is comparable to most other companies low setting so there is a high shred warning in effect.

6. Size Specific Chainstays
The Spire has two size specific chainstay lengths to provide balanced handling and rider weight distribution across the range of sizes.

7. Enduro Max Bearings
We exclusively use Enduro Max suspension pivot specific bearings in standard sizes that are readily available worldwide. Dual bearings are used at the dropout pivots for frame stiffness and additional c-clips lock the rocker bearings in place under torsional loads.

8. Gear Accessory Mount
Our underside top-tube accessory mount allows you to carry a spare tube or other goodies safely on your frame in case you are looking to ditch the backpack.

9. Dual Crown Fork Compatible
Both the carbon and alloy frame options are fully dual crown compatible for those wanting to dip their toes into the DH world.

10. Tire Clearance
Ample clearance for mud and tires up to 2.6" width.

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

Feature available on carbon framesets only.

12. Press In Headset
Our ZS56/ZS56 press in headset gives you the freedom to use reach adjust and angle adjust headsets for maximum adjustability.

Adjustable headsets are not supplied with Spire framesets or complete bikes.

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

14. Universal Derailleur Hanger
The Spire features a SRAM Universal Derailleur Hanger that protects your derailleur against chain jams by pivoting back and out of the way, and slips slightly when encountering impacts. It improves shifting performance, guarantees better alignment, works with all drivetrains and is available anywhere.

1. 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.

2. Frame Material

The Spire carbon uses premium Japanese Toray fiber using a unique latex coated EPS molding process to create tighter edge radius control using less material. The Spire alloy features a frame made from tough and dependable heat treated 6061 aluminum to strike the right balance of strength, durability and ride quality.

3. Pivot Technology

Collet main pivot technology improves rear end stiffness and keeps your pivot hardware tight. Additional bearing shields prevent main pivot bearing contamination when washing your bike or riding in wet conditions.

4. Frame Protection

We keep your bike rides quiet and your frame safe from damage with fully integrated, flush-mounted rubber frame protection at all critical areas. In addition to downtube and seatstay protection, the ribbed chainstay protector features expanded coverage of the rear dropout pivot area.

6. Size Specific Chainstays
The Spire has two size specific chainstay lengths to provide balanced handling and rider weight distribution across the range of sizes.

7. Enduro Max Bearings

We exclusively use Enduro Max suspension pivot specific bearings in standard sizes that are readily available worldwide. Dual bearings are used at the dropout pivots for frame stiffness and additional c-clips lock the rocker bearings in place under torsional loads.

8. Gear Accessory Mount

Our underside top-tube accessory mount allows you to carry a spare tube or other goodies safely on your frame in case you are looking to ditch the backpack.

8. Dual Crown Fork Compatible
Both the carbon and alloy frame options are fully dual crown compatible for those wanting to dip their toes into the DH world.

10. Tire Clearance

Ample clearance for mud and tires up to 2.6" width.

11. User Friendly Cable Routing

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

Feature available on carbon framesets only.

12. Press In Headset

Our ZS56/ZS56 press in headset gives you the freedom to use reach adjust and angle adjust headsets for maximum adjustability.

Adjustable headsets are not supplied with Spire framesets or complete bikes.

13. Water Bottle Compatibility

We keep your water bottle clean inside the front triangle so you can keep hydrated without worrying about mud making it to your mouth.

14. Universal Derailleur Hanger

The Spire features a SRAM Universal Derailleur Hanger that protects your derailleur against chain jams by pivoting back and out of the way, and slips slightly when encountering impacts. It improves shifting performance, guarantees better alignment, works with all drivetrains and is available anywhere.

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.

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

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

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

"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

"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

FAQ'S

REAR TRAVEL:	170mm (Compatible with 160mm)

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

WHEEL SIZE:	29"

SIZES:	SM, MD, LG, XL, XXL

COLORS:	Carbon: Huckleberry, Primer Gray Alloy: Factory Orange, Raw

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

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