Cannondale Jekyll Carbon 1

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Cannondale’s Jekyll Carbon 1 gets you down the mountain hysterically fast with a light, stiff, and tough full-carbon BallisTec frame that arrives at the bottom begging to do it again. And you will, too, with 165mm of Fox Factory X EVOL-guided travel in back and 170mm more up front, courtesy of Fox’s buttery Factory Float 36 fork. Together, they make easy work of gnarly descents where the only break you get is the climb back up. Since we’re talking about climbing, the Jekyll is no slouch in the uphill department, either, with a switch-on-the-fly rear suspension that offers Hustle Mode for tenacious efficiency. Put the power to the 12-speed SRAM X01/XX1 Eagle drivetrain via a Descendant carbon crankset, and you’ll gain elevation as fast as you drop the competition. Meanwhile, SRAM’s flawless Guide RSC brakes modulate precisely, so you can negotiate any trail with dialed control. This rig’s Maxxis Minion EXOs eat loose trail for breakfast wrapped around Cannondale’s incredible HollowGram 30 wheels that spin up like they’re not even there while standing up to unwavering speed through the chop. So, jump on, slam the RaceFace Turbine dropper post, and flow this trail beast straight to victory.

Features & Info

Geometry chart

Geometry Chart Cannondale Jekyll

Dropper posts

Dropper post explanation

Why 27.5-inch/650B?

27.5-inch (650B) wheels explained
Pedals sold separately


165mm travel, BallisTec Carbon frame and swingarm, carbon link, Ai offset
Fox Factory Float 36, 170mm, Fit 4, 3-pos. lever, Kashima coating, 44mm offset"
Rear Shock
Fox Factory Float X EVOL w/Gemini remote-actuated dual mode air spring system, Flow Mode - 165mm / Hustle Mode - 130mm, Kashima coating, 3-pos. lever
Front: 110 x 15mm TA
Rear: 148 x 12mm TA w/Ai offset
Cannondale HollowGram 30 Carbon, 30mm inner, tubeless Ready
Maxxis Minion, 3C, EXO, folding, tubeless ready
Front: DHF 27.5 x 2.5
Rear: DHR II 27.5 x 2.4
TRUVATIV Descendant Carbon Eagle w/ custom Ai offset
Bottom Bracket
Rear Derailleur
SRAM XX1 Eagle
Cassette/Rear Cogs
SRAM Eagle, 12-speed: 10-50
SRAM X01 Eagle
Brake Levers
SRAM Guide RSC hydraulic disc, 200/180mm Centerline rotors
Seat Post
RaceFace Turbine dropper, internal routing, 31.6MM
Travel: 150mm M-XL / 125mm SM