Visa MasterCard American Express Discover PayPal

on Orders over $75
(Does not apply to bikes/fitness equipment & oversize packages)

Southside - Megastore

2540 S Wabash
M-F 11-8
Sat 10-6, Sun 12-6

Northwest - Megastore

3255 N. Milwaukee
M-F 11-8
Sat 10-6, Sun 12-6


3712 N. Halsted
M-F 11-8
Sat 10-6, Sun 11-6

Near North

219 W. Erie
M-F 11-8
Sat 10-6, Sun 11-6

South Loop

811 S. DesPlaines
M-F 11-8
 10-6, Sun 12-6







Sign-up to hear about our specials and events.
Jamis Defcon 3 (i23)


Defcon 3 (i23)

  • This manufacturer does not allow us to ship this item. You can purchase this item and pick it up at our stores ($20 will be charged to hold your order and the balance must be paid for when you pick up the order). We can also arrange for delivery (free assembly) in Cook and DuPage County, IL (delivery fees will apply).
Product Rating
0.0 stars
 (0 Reviews)

2016 Jamis Defcon 3 (i23)

SAVE 20%!!!

Big days on techy trails, or hot laps on the flow trail, the Jamis Defcon 3 is your weapon of choice. This 160mm-travel machine takes on all terrain with grace thanks to its single-pivot MP4 suspension. The pivot is placed to minimize braking influences and reduce pedal kickback and unwanted movement due to chain tension. That's nerd speak for "stays plush and active when you stomp on the pedals." Your bearings are US-made Enduro Max that are 10mm wide for increased lateral and torsional stiffness, and increased shock durability and performance. Again, nerd speak for "holds your line through chunder over and over again." The geometry is exactly what you'd expect from a high end ripper: quick, agile and confident. A Shimano 2 x 10-speed drivetrain keeps you rolling and Deore brakes slow you slow. Of course, like any true enduro bike, you've got wide bars, a short stem, and a legit dropper post.

Features and Information

Specification Description
Frame Triple-butted 6061 air-formed aluminum, 160mm travel, 12x142mm thru-axle, dropper post routing, ISCG05 chainguide mounts
Fork X-Fusion Sweep RL2, 160mm-travel,15mm axle
Rear Shock X-Fusion 02 Pro RLX High Volume
Rims/Wheels WTB ST i25 TCS
Hubs Formula aluminum
Spokes Stainless-steel
Tires Vittoria Goma 27.5 x 2.4 front, Morsa 27.5 x 2.3 rear
Crankset Shimano Deore
Chainrings 36/22
Rear Derailleur Shimano Deore
Rear Cogs Shimano, 10-speed: 11-36
Shifters Shimano Deore
Handlebars Loaded Precision X Riser
Tape/Grips Jamis lock-on
Stem Loaded Precision X
Brakes Shimano Deore disc, 180mm rotors
Saddle WTB Volt Sport
Seatpost KS eTen

* Subject to change without notice.


by PowerReviews
Option Barcode Manufacturer's Part Number
Cosmo Blue / 17-inch 00845436011653 03-0026BL
Cosmo Blue / 19-inch 00845436011660 03-0027BL
Cosmo Blue / 21-inch 00845436011677 03-0028BL