Stinner Tunnel Podium Frame

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Tunnel Podium Tunnel isn’t just a ride — it’s a challenge carved into the mountains above Santa Barbara. Rutted, raw, and relentlessly steep, it’s a trail that demands skill, commi tment, and a bike built to deliver. It’s the kind of place that forges better riders — and better bikes. That ethos inspires the Stinner Tunnel line. Whether you’re just beginning your journey with the Select Series or pushing your performance with the Podium, these bikes are built with the same spirit: capable, purpose-driven, and ready for whatever lies ahead. Where it all begins. Where limits are tested. Frameset Technical Specifications // FRAME // Material // Stinner Podium Titanium Tubeset - Straight Gauge Finish // Bead Blasted Raw Ti Dropouts // UDH Titanium Dropouts Drivetrain Compatibility // SRAM AXS Eagle Transmission/Full Mount compatible MAX Tire Clearance // 29 x 2.5" MAX Chainring Clearance // 1x: 34t (55mm chainline) Dropout Spacing // Boost 148 x 12mm Rear Axle // 173mm - M12 x 1.0 - 15mm threaded portion Brake Mount // Post Mount 160mm MAX Rotor Size // 180mm Brake Routing // Internal through frame - Hose enters the downtube just behind the headtube Seatpost Diameter // 31.6mm - Wireless Dropper Compatible Seatpost maximum insertion // Med: 205mm // M/L: 225mm // Large: 245mm // XL: 265mm Seatpost Clamp Diameter // 34.9mm Bottom Bracket // T47 73mm wide shell Headtube Diameter // 44mm Internal Top and Bottom Headset Specs // Upper: ZS44/28.6 - Lower: EC44/40 (1.5 Tapered Steerer) Mounts // 2 bottle cage mounts in front triangle - triple mount under down tube FORK // The Tunnel is designed around a 140mm travel suspension fork with a 551mm axle to crown measurement. Geometry M M/L L XL Stack 644 655 666 677 Reach 447 460 480 500 Top Tube Length, Horizontal 628 644 668 692 Head Tube Length 96 108 120 132 Head Tube Angle 66° 66° 66° 66° BB Height* 313 312 313 313 BB Drop 60 60 60 60 Effective Seat Tube Angle 76° 75.8° 75.7° 75.5° Front Center** 758 775 800 825 Chainstay Length 430 430 430 430 Wheelbase** 1181 1199 1224 1249 Standover Height 60mm forward of BB* 771 788 804 820 Seat Tube Length (center - top) 420 440 460 480 *w/ 29 x 2.5" tires **w/ 44mm fork rake All Measurements are Static All Measurements in mm Show more