Frameset
Frame
Ultra Modulus Carbon frame
Decoy SN 29 Core 1 CF
The YT Decoy SN is the brand’s lightweight-assist e-mountain platform, built around a carbon frame and Fazua’s Ride 60 drive system rather than the larger motors and batteries used on full-power e-bikes. In its original 2024 form, the Decoy SN MX was positioned as the more aggressive version of the concept: a mixed-wheel bike with 170 mm of front travel and 160 mm at the rear, aimed at riders who want enduro-bike intent with a lighter, lower-assistance package. Key frame details include side-entry headtube cable routing with clamped ports, a flip chip for setup adjustment, and a Post Mount 200 brake standard that signals the bike’s descending focus.
Price TBD
Image pending
Build
Size
Fit and geometry
YT’s official technical-document index identifies the platform as the Decoy SN manual for “MK1 / 2024 - Current,” and launch coverage shows the Decoy SN MX debuted in July 2024. I did not find evidence of an earlier Decoy SN generation sold as a prior model year, so the Decoy SN is currently a one-generation model line. (yt-industries.com)
This MK1 platform is a carbon, Fazua Ride 60 mid-support eMTB family. The original Decoy SN MX uses a mixed-wheel layout with 170 mm front / 160 mm rear travel, side-entry headtube cable routing with clamped ports, and a frame hardware package that includes a flip chip and Post Mount 200 brake standard. In April 2025, YT added the Decoy SN 29 as a model variant on the same broader Decoy SN platform rather than a replacement generation: independent launch coverage describes it as a 29er sibling sharing the same design language as the MX bike, while shifting the package toward 29" wheels, 160/140 mm travel, and the newer 480 Wh Fazua battery. (yt-industries.com)
Full specs
Wheelset
Front tire
Maxxis tires
Rear tire
Maxxis tires
Builds
The Decoy SN range spans both the original 170 MX lineup and the later Decoy SN 29 models, with builds listed from Core 1 CF through Core 4 CF on the 29 platform, and Core 2 through Core 4 on the 170 MX side. That structure suggests YT is covering both entry and premium spec levels across the two intended use cases: the MX bikes for riders prioritizing steeper-terrain capability and the 29 models for those looking for a slightly less aggressive, more all-round interpretation of the same lightweight eMTB idea.
Within the platform, the most meaningful spec split is not just component level but bike format. The 170 MX models pair the carbon Fazua chassis with a mullet wheel setup and 170/160 mm travel, while the Decoy SN 29 shifts to dual 29-inch wheels, 160/140 mm travel, and the newer 480 Wh Fazua battery. Without detailed component lists or prices, it is not possible to rank individual builds on value, but the lineup clearly separates buyers by both budget and riding style rather than offering only cosmetic spec changes.