Transition Spire Carbon XT

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.

FRAME SPECIFICATIONS 

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	63.0° / 62.5°	63.0° / 62.5°	63.0° / 62.5°	63.0° / 62.5°	63.0° / 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

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.