Product Overview The S&M BTM Frame is Mike Hoder's signature model, built for aggressive all-terrain riding with proven S&M construction. It features butted ThermalX chromoly tubing for strength and weight savings, integrated seat clamp, and 14mm slot dropouts. Available in three top tube lengths to accommodate different rider sizes and preferences. Designed to handle high-impact street, park, and trail riding. Key Features Butted ThermalX chromoly tubing – Variable wall thickness reduces weight in low-stress areas while maintaining strength where needed Integrated seat clamp – Built-in clamp eliminates external hardware for cleaner appearance and reduced weight 14mm slot dropouts with 4Q-Baked finish – Wide axle compatibility and heat-treated finish for durability and corrosion resistance Adjustable rear end length – 13.05″–13.50″ allows fine-tuning of wheelbase for personal preference and wheel fitment Integrated 45°/45° head tube – Accepts integrated headsets for reduced stack height and streamlined front end Mid bottom bracket – Standard BMX BB placement balances pedal clearance with comfortable positioning Threaded 990 brake mounts – Compatible with U-brakes for riders who run rear braking (mounts sold separately) Made in USA – S&M manufacturing ensures consistent quality and frame alignment Technical Specifications Wheel size: 20 inches Top tube lengths: 20.75″, 21″, 21.25″ Rear end length: 13.05″–13.50″ (adjustable) Head tube angle: 75° Seat tube angle: 71° Standover height: 8.75 inches Bottom bracket height: 11.5 inches Head tube type: Integrated 45°/45° (41.8mm) Bottom bracket type: Mid Seat clamp: Integrated Seat post size: 1 inch / 25.4mm Brake mounts: Threaded 990 (mounts not included) Dropouts: 14mm slot, 4Q-Baked finish Gyro tabs: None Weight: 20.75″: 5 lbs / 2.26 kg | 21″: 5.05 lbs / 2.29 kg | 21.25″: 5.10 lbs / 2.31 kg Material: Butted ThermalX chromoly steel Compatibility and Ideal Use Cases This frame requires 20-inch wheels, 14mm rear hub, mid bottom bracket, integrated headset, and 1-inch seat post. The three top tube options accommodate riders from approximately 5'4″ to 6'+ depending on riding style: 20.75″ for shorter riders or those preferring tighter setups, 21″ for average height, and 21.25″ for taller riders or those wanting more cockpit space. Best suited for street, park, and trail riding where durability and responsive geometry matter. The adjustable rear end allows customization of chain stay length for dialing in handling characteristics. If you plan to run a rear brake, you'll need to purchase threaded 990 brake bosses separately. No gyro tabs, so this frame is designed for brakeless or direct cable routing only. **Due to unique custom nature AND/OR large size of this item, ALL sales of this product are FINAL. No Refunds or Returns (exceptions made for cases of damaged or incorrect item sent)**
