Retired 4130 Trail · 2026
4130 Trail - Mountain Bike - West Sunset
With a slack 65-degree head angle and a double-butted 4130 chromoly frame, the 4130 Trail in West Sunset was State Bicycle Co.'s steel trail mountain bike, introduced in 2025 and retired in May 2026. The frame added UDH compatibility, internal dropper routing, a threaded 73mm BSA bottom bracket, and three bottle mounts on the down tube. Up front was a RockShox Psylo Silver RC with 130mm of travel and 35mm stanchions. It rolled on 29-inch WTB i30 rims with 2.4-inch WTB Trailboss tires, shifted through a 1x11 MicroShift XLE drivetrain with an 11-46t cassette, and stopped with Tektro hydraulic discs on 180mm rotors.
Series: 4130 Trail - Mountain Bike
Date Retired: 05/26/2026
4130 Trail - Mountain Bike - West Sunset specs
| Frame | Double-butted 4130 chromoly steel, 65° head angle, UDH-compatible, internal dropper routing (31.6mm seat tube) |
|---|---|
| Bottom bracket | Threaded, 73mm BSA |
| Mounts | Triple bottle cage mounts on the downtube |
| Fork | RockShox Psylo Silver RC, 130mm travel, 35mm stanchions |
| Rims | WTB i30 TCS 29" tubeless-ready |
| Hubs | Boost (110/148mm), sealed bearings |
| Tires | WTB Trailboss TCS 29 x 2.4" tubeless-ready |
| Drivetrain | 1x11 MicroShift XLE |
| Crankset | SBC 32T narrow-wide, 165mm |
| Cassette | 11-46T |
| Chain | KMC X11 |
| Brakes | Tektro HD-M275 hydraulic disc, 2-piston, 180mm rotors |
| Handlebars | SBC Low Rise, 770mm wide, 35mm clamp |
| Stem | SBC 3D-forged alloy, 35mm clamp |
| Saddle | Trail-ready PU pad with steel rails |
| Seatpost | SBC 31.6mm with quick-release clamp |
| Max tire size | Frame: 29" up to 2.6", 27.5" up to 3.0" / Fork: 29" up to 2.6" |
Specs as State Bicycle Co. originally listed them for this model.
