Bicycle Archive · Specification report

2018 Cannondale Jekyll 4

Velopedia Archive ID 900002557

Overview

Model year	2018
Brand	Cannondale
Model	Jekyll 4
Bicycle type	Mountain
Archive ID	900002557
Colors	Satin Jet Black w/ Gloss Hazard Orange, Aqua Blue and Charcoal Gray - (BLK)
Sizes	S, M, L, XL

Frameset

Frame construction	All-New Jekyll, 165mm travel, SmartForm C1 Alloy, carbon shock link, Ai offset drivetrain, ISCG05, BB30, flat mount brake, tapered headtube
Frame material	Carbon
Fork	Fox Float 36 Performance, 27.5, 170mm, 110x15, tapered steerer, 44mm offset
Rear shock	Fox Float Performance DPS EVOL w/ Gemini remote-actuated dual mode air spring system, Flow Mode - 165mm / Hustle Mode - 130mm

Drivetrain

Shifters	Shimano SLX, 11-speed
Front derailleur	N/A
Rear derailleur	Shimano SLX, 11-speed
Crankset	Cannondale Si, BB30, SpideRing 30T, Ai offset
Bottom bracket	Cannondale BB30
Rear cogs	Shimano SLX, 11-speed, 11-46
Chain	KMC X11, 11-speed
Pedals	N/A

Brakes

Brakes	Shimano Deore MT500 hydro disc, 180/180mm

Cockpit & contact points

Headset	Integrated, 1-1/8 to 1.5”, sealed angular contact bearings
Handlebar	Cannondale C3 Riser, 6061 Alloy, 15mm rise, 4° up, 9° back, 31.8, 780mm
Stem	Cannondale C3, 6061 Alloy, 1-1/8”, 31.8, 0°, 35mm
Saddle	Fabric Radius Scoop
Seatpost	TransX dropper, Internal Routing, 31.6, 120mm drop

Wheels & tires

Hubs	Formula w/ HG driver - 110x15 thru front / 148x12 thru rear w/Ai offset
Rims	WTB STP i25, 25mm inner, TCS Tubeless Ready 27.5”, 32h
Spokes	DT Swiss Champion 2.0
Front tire	Maxxis Minion DHF 27.5x2.5” front, DHR II 2.4” rear, Dual Compound, folding, Tubeless Ready
Rear tire	Maxxis Minion DHF 27.5x2.5” front, DHR II 2.4” rear, Dual Compound, folding, Tubeless Ready
Wheel size	27.5"

Geometry · S

Seat tube	400 mm
Effective top tube	584 mm
Top tube	537 mm
Head tube	102 mm
Head-tube angle	65°
Seat-tube angle	75°
Chainstay / rear center	420 mm
Wheelbase	1160 mm
Bottom-bracket drop	8 mm
Bottom-bracket height	349 mm
Reach	425 mm
Stack	592 mm
Standover height	750 mm
Fork offset / rake	44 mm
Front center	740 mm
Trail	114 mm

Geometry · M

Seat tube	430 mm
Effective top tube	609 mm
Top tube	562 mm
Head tube	115 mm
Head-tube angle	65°
Seat-tube angle	75°
Chainstay / rear center	420 mm
Wheelbase	1187 mm
Bottom-bracket drop	8 mm
Bottom-bracket height	349 mm
Reach	447 mm
Stack	604 mm
Standover height	758 mm
Fork offset / rake	44 mm
Front center	767 mm
Trail	114 mm

Geometry · L

Seat tube	460 mm
Effective top tube	634 mm
Top tube	587 mm
Head tube	127 mm
Head-tube angle	65°
Seat-tube angle	75°
Chainstay / rear center	420 mm
Wheelbase	1214 mm
Bottom-bracket drop	8 mm
Bottom-bracket height	349 mm
Reach	469 mm
Stack	615 mm
Standover height	767 mm
Fork offset / rake	44 mm
Front center	794 mm
Trail	114 mm

Geometry · XL

Seat tube	520 mm
Effective top tube	662 mm
Top tube	621 mm
Head tube	140 mm
Head-tube angle	65°
Seat-tube angle	75°
Chainstay / rear center	420 mm
Wheelbase	1244 mm
Bottom-bracket drop	8 mm
Bottom-bracket height	349 mm
Reach	494 mm
Stack	626 mm
Standover height	775 mm
Fork offset / rake	44 mm
Front center	824 mm
Trail	114 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 30, 2026.