YT Launches the Jeffsy Uncaged 13: Old School for the New School Generation

JEFFSY has always been about friendship on the trail while having your back in any situation. Now, YT Industries takes it back to the 90s with a limited, retro-inspired UNCAGED 13 edition, mixing things up with an MX-specific frame and custom, nostalgic silver components.

Exclusive to this model, the UNCAGED 13 features an MX wheel setup – 27.5” rear wheel, 29" front. Rear travel jumps up to 150mm for extra flat landing assistance, plus the shorter chainstays of 432mm (size S-L) and 437mm (XL-XXL) promote agility and slashing corners. Make no mistake, though – this is a thoroughbred JEFFSY, and the remaining measurements match the original 29" platform, including the 77-degree effective seat tube angle across all five sizes.

Embracing Marzocchi's freeride heritage is an air-sprung Bomber Z1 fork with 36mm stanchions and an easy-to-set-up GRIP damper. The Bomber Air rear shock matches this trait, positioning itself as a workhorse for all types of riding. Renthal provides a one-off silver Fatbar & Apex stem cockpit, while matching Crankbrothers Synthesis Enduro 2 wheels and SRAM G2 Ultimate brakes complete the throwback look. Touchpoints from ODI x Vans and SDG tie the build together alongside a cable-actuated SRAM GX groupset, adjustable YT Postman V2 dropper, and quality Maxxis EXO+ tires.

For more information, please yt-industries.com

View key specs, compare bikes, and rate the new YT Jeffsy builds in the Vital MTB Product Guide.