Cannondale Topstone 2 2x Bike GRX Where the Pavement Ends Riders who want a capable, adventure-oriented gravel bike without the carbon price tag have a great option here. The Smart Form C2 Alloy frame pairs with a full carbon fork to keep weight manageable and steering precise, while Out Front geometry pushes the front axle further forward for the kind of planted, confident handling that pays off when the surface gets loose. Internal cable routing keeps things tidy, and the frame comes with a removable fender bridge for wet-weather commuting or shoulder-season rides. Shimano GRX 400 handles shifting and braking duties - a 2x10-speed gravel-specific groupset that gives you two chainrings worth of range for managing steep climbs and fast descents without a front derailleur compromise. The GRX 400 hydraulic disc brakes run 160mm rotors front and rear for consistent stopping power in wet or dry conditions. A WTB tubeless-ready wheelset wrapped in WTB Riddler tires keeps rolling resistance low on pavement transitions while still gripping on hardpack. The Fizik Aliante Delta saddle rounds out a build that's genuinely ready to ride out of the box. Features Smart Form C2 Alloy frame lightweight alloy construction with tapered head tube, 12x142mm thru-axle, BSA threaded BB, flat mount disc, and Straight Shot internal cable routing Full carbon fork with 55mm Out Front offset, 12x100mm thru-axle, and fender/gear mounts for a light, stable front end on rough terrain Shimano GRX 400 2x10-speed drivetrain gravel-specific groupset with wide-range gearing for climbing and flat-out speed Shimano GRX 400 hydraulic disc brakes 160mm rotors front and rear for powerful, consistent stopping power WTB ST i23 TCS tubeless-ready wheelset paired with WTB Riddler 700x37c tires for a fast-rolling, capable gravel tread Removable fender bridge practical, wet-weather ready for commuting or shoulder-season riding Specifications Frame Topstone, Smart Form C2 Alloy, 12x142mm Thru-Axle, Tapered Head Tube, BSA Threaded BB, Flat Mount Disc, Straight Shot Internal Cable Routing, Multiple Gear/Bottle Mounts Fork Topstone Carbon, 1-1/8" to 1. 5" Steerer, 55mm Out Front Offset, Flat Mount Disc, Internal Routing, 12x100mm Thru-Axle, Fender/Gear Mounts Rear Suspension N/A (rigid)Headset Integrated, 1-1/8" - 1. 5"Shifters Shimano GRX 400, 2x10-Speed Front Derailleur Shimano GRX 400, 2x Rear Derailleur Shimano GRX 400, Shadow RD+, 10-Speed Crankset FSA Omega AGX+ Alloy, 46/30Bottom Bracket FSA Cartridge, BSA Threaded Chain KMC X10, 10-Speed Cassette Shimano HG500, 11-34T, 10-Speed Brakes Shimano GRX 400 Hydraulic Disc, 160mm/160mm RT54 Rotors Wheelset WTB ST i23 TCS Rims, 28H, Tubeless Ready, Stainless Steel 14g Spokes, Formula Cartridge Bearing Hubs (Front: 12x100mm Centerlock / Rear: 12x142mm Centerlock)Tires WTB Riddler, 700x37c, Tubeless Ready (Europe/UK: Vittoria Terreno Dry, 700x37c)Tire Clearance700x37c (as specced)Handlebar Cannondale 3, Butted 6061 Alloy, 16deg Flare Drop Stem Cannondale 3, 6061 Alloy, 31. 8mm, 7degBar Tape Cannondale Bar Tape, 3. 5mm Seatpost Cannondale 3, 6061 Alloy, 27. 2 x 350mm Seatclamp Cannondale Saddle Fizik Aliante Delta, S-Alloy Rails Mounting Points Multiple gear/bottle mounts on frame and fork, removable fender bridge Intended Use Gravel, Adventure, Commuting Note: Components are subject to change without notice. METRICINCHCannondale Topstone 2 2x Size XSSMMDLGXLA: Seat Tube Length410458505553600B: Effective Top Tube533544557572587C: Stack518549579610640D: Reach368377385394402E: BB Height F: BB Drop7575757575G: Head Tube Length86115147180212H: Head Tube Angle70. 0deg71. 0deg71. 0deg71. 0deg71. 0degI: Seat Tube Angle73. 1deg (Effective) / 71. 8deg (Actual)73. 1deg / 71. 8deg73. 1deg / 71. 8deg73. 1deg / 71. 8deg73. 1deg / 71. 8degJ: Standover Height K: Chainstay Length435435435435435L: Wheelbase10161027104510651083Crank Arm Length Stem Length Handlebar Width Suggested Rider Height Frame Size XSSMMDLGXLRider Height4'10" - 5'5" (147-165cm)5'3" - 5'9" (160-175cm)5'7" - 6'1" (170-185cm)5'10" - 6'4" (178-193cm)6'3" - 6'8" (190-203cm)Cannondale Topstone 2 2x Size XSSMMDLGXLA: Seat Tube Length16. 118. 019. 921. 823. 6B: Effective Top Tube21. 021. 421. 922. 523. 1C: Stack20. 421. 622. 824. 025. 2D: Reach14. 514. 815. 215. 515. 8E: BB Height F: BB Drop3. 03. 03. 03. 03. 0G: Head Tube Length3. 44. 55. 87. 18. 3H: Head Tube Angle70. 0deg71. 0deg71. 0deg71. 0deg71. 0degI: Seat Tube Angle73. 1deg / 71. 8deg73. 1deg / 71. 8deg73. 1deg / 71. 8deg73. 1deg / 71. 8deg73. 1deg / 71. 8degJ: Standover Height K: Chainstay Length17. 117. 117. 117. 117. 1L: Wheelbase40. 040. 441. 141. 942. 6Crank Arm Length Stem Length Handlebar Width Suggested Rider Height Frame Size XSSMMDLGXLRider Height4'10" - 5'5" (147-165cm)5'3" - 5'9" (160-175cm)5'7" - 6'1" (170-185cm)5'10" - 6'4" (178-193cm)6'3" - 6'8" (190-203cm)