Surly Preamble Framset Nothing More is Needed Gravel bikes continue to grow in popularity as they are truly a one-bike-does-all type of bike. These bikes are perfect for riding on the pavement and tackling those fun gravel grinds. The Surly Preamble Framset is a pavement and gravel utility worker that proves you don't need to cut corners or clip coupons to make a more affordable steel bike. You just need to keep stuff simple. The Preamble can run racks and fenders and carry a couple of water bottles. Smooth and efficient on asphalt, the Preamble's double-butted main triangle provides a resplendent ride feel and withstands abuse from life's inevitable potholes. Features100% Surly chromoly steel frame and fork with a double-butted main triangle Mounts for racks, fenders, and two bottle cages Clearance for up to 650b x 41mm on XS-S frame sizes (650b x 38mm with fenders); 700c x 41mm tires on M-XL frame sizes (700c x 38mm with fenders)Friendly with 1x and 2x drivetrains SPECIFICATIONSFrame100% Surly Chromoly Steel Wheel Size700c, 650b Fork Chromoly Steel Headset Included No Headtube Diameter EC34/28. 6 | EC34/30Front Derailleur Type High direct mount top-pull ( 28. 6mm)Bottom Bracket Type68mm BSA Threaded Seatpost27. 2mm Seat Clamp30. 0mm Dropout Style10x135 or 10x141mm Accessory Mounts Rack, Fenders, Bottle Cage Mounts Cable routing External Intended Use Gravel, All-Road Weight N/ANote: Components are subject to change without notice. METRICINCHSurly Preamble Size Extra Small Small Medium Large Extra Large A: Seat Tube Length410505565605645B: Effective Top Tube500545570600630C: Stack517535567605643D: Reach352381391404421E: BB Height-F: BB Drop5454545454G: Head Tube Length120135130170210H: Head Tube Angle70 deg71 deg72 deg72 deg72 degI: Seat Tube Angle74 deg73 deg72. 5 deg72 deg72 degJ: Standover Height722776826863901K: Chainstay Length420420435435435L: Wheelbase9871013103010551085Suggested Rider Height Frame Size Extra Small Small Medium Large Extra Large Rider Height5'0" - 5'5" 152 - 165 cm5'4" - 5'8" 162 - 172 cm5'7" - 6'0" 170 - 182 cm5'11" - 6'3" 180 - 190 cm6'2" - 6'7" 187 - 200 cm Surly Preamble Size Extra Small Small Medium Large Extra Large A: Seat Tube Length16. 119. 922. 223. 825. 4B: Effective Top Tube19. 721. 522. 423. 624. 8C: Stack20. 421. 122. 323. 825. 3D: Reach13. 915. 015. 415. 916. 6E: BB Height-F: BB Drop2. 12. 12. 12. 12. 1G: Head Tube Length4. 75. 35. 16. 78. 3H: Head Tube Angle70. 0 deg71. 0 deg72. 0 deg72. 0 deg72. 0 degI: Seat Tube Angle74. 0 deg73. 0 deg72. 5 deg72. 0 deg72. 0 degJ: Standover Height28. 430. 632. 534. 035. 5K: Chainstay Length16. 516. 517. 117. 117. 1L: Wheelbase38. 939. 940. 641. 542. 7Suggested Rider Height Frame Size Extra Small Small Medium Large Extra Large Rider Height5'0" - 5'5" 152 - 165 cm5'4" - 5'8" 162 - 172 cm5'7" - 6'0" 170 - 182 cm5'11" - 6'3" 180 - 190 cm6'2" - 6'7" 187 - 200 cm | Surly | Preamble Frameset | Black | M 700C