Specialized Stumpjumper 27.5 2020 Geometry

XS	S	M	L	XL
CRANK LENGTH	170	170	170	170	170
STEM LENGTH	40	40	40	50	50
SEATPOST LENGTH	325	375	438	438	478
SADDLE WIDTH	155mm	143mm	143mm	143mm	143mm
HANDLEBAR WIDTH	780mm	780mm	780mm	780mm	780mm
REACH	405mm	415mm	435mm	455mm	480mm
TOP TUBE LENGTH, HORIZONTAL	544mm	570mm	595mm	627mm	660mm
STACK	581mm	592mm	596mm	623mm	637mm
WHEELBASE	1127mm	1157mm	1179mm	1212mm	1243mm
CHAINSTAY LENGTH	432mm	432mm	432mm	432mm	432mm
FRONT CENTER	696mm	726mm	748mm	780mm	812mm
BB DROP	28mm	21mm	21mm	21mm	21mm
BB HEIGHT	325mm	336mm	336mm	336mm	336mm
SEAT TUBE ANGLE	76.5°	75.3°	75°	74.6°	74.2°
HEAD TUBE ANGLE	66.5°	65.5°	65.5°	65.5°	65.5°
SEAT TUBE LENGTH	380mm	380mm	410mm	455mm	505mm
HEAD TUBE LENGTH	100mm	105mm	110mm	140mm	155mm
BIKE STANDOVER HEIGHT	742mm	739mm	743mm	758mm	774mm
FORK RAKE/OFFSET	46mm	46mm	46mm	46mm	46mm
FORK LENGTH, FULL	522mm	542mm	542mm	542mm	542mm
TRAIL	103mm	112mm	112mm	112mm	112mm

Ty Sutherland

Ty Sutherland: Nestled in the heart of Okanagan, BC - a global epicenter for mountain biking - Ty has been an ardent mountain biker for over 15 years. His journey began with a Norco Sight, a ride that ignited his passion for the sport. Since then, his collection has grown to include the adrenaline-pumping Norco Aurum for downhill park adventures and the cutting-edge Specialized Turbo Levo. With a keen eye on the ever-evolving world of bike geometry and technology, Ty is fascinated by how bikes continue to advance, becoming safer and amplifying the thrill with each innovation. At "Bikometry.com", Ty's mission is clear: to keep fellow biking enthusiasts abreast of the latest advancements, ensuring every ride is safer, more exhilarating, and endlessly enjoyable.

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Bikometry is a discipline focused on the science and art of understanding the geometry and linkage of mountain bike frames and their suspension systems.

This intricate field studies the angles, distances, and details that define a bike's performance on various terrains. Every aspect, from the head tube angle to the chainstay length, influences how the bike behaves.

Linkage, which connects the rear wheel to the bike frame, combined with the suspension, ensures smooth rides by absorbing shocks from the terrain.

By understanding bikometry, whether you're a designer, professional rider, or enthusiast, you can optimize bike performance, choose the right model, or even craft a custom bike. Dive into bikometry with us and explore the nuances that make mountain biking exhilarating.

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