Fuse 4
Part No.  

Fuse 4

Part No.  
Please select an option
Fuse 4
Technical Specifications
Everything you want and nothing you don't, the X-Games-proven Fuse offers more bang for your buck than any other player in the game. Always bomb-proof, high integrity and ultra lightweight, with super-low BBs and compact drive options.
  • Tough Cr-Mo butted fork with one-piece CNC steerer
  • Superlight 60 TPI Rhythm Lite Control tires get the job done and keep weights low
  • Fuse SL 2-piece Cr-Mo hollow spindle cranks for a solid, surefooted, lightweight platform
  • CNC 10t sealed cartridge bearing cassette and reinforced flanges to resist bending from grinds and stalls
  • 28-tooth CNC-cut chainring uses a patented Wave interface that engages the links and bushings for durability
  • 100% Cr-Mo double-butted frame with latest features--integrated headset, MID BB shell and integrated chain tensioning system

Technical Specifications

CHAIN KMC KOOL K-710 SL, 1/2"" x 1/8""
BOTTOM BRACKET Mid BB, 2x cartridge bearing, alloy cone spacers w/ 19mm spindle
FREEWHEEL Joy Tech, 1/2"" x 1/8"" x 10t Cr-Mo, cog driver integrated w/ rear hub
CRANKSET Fuse SL 2pc., 175mm length, tig welded and heat treated Sanko Cr-Mo arms, hollow 19mm x 152mm 8-spline spindle
CHAINRINGS CNC cut 6061 28t w/ Motostar design and patented Wave Interface designed specifically for KMC KOOL K-710 chain
FRONT HUB Fuse SL, 36h, 2x sealed cartridge bearing, mid flange, hollow 14mm axle
REAR HUB Fuse SL, 36h, cassette w/ 10t cog driver, 4x sealed cartridge bearing, mid flange, 14mm hollow axle
INNER TUBES Schraeder valve
SPOKES 2mm (14g) stainless
RIMS Fuse SL, double wall w/ eyelets
FRONT TIRE Specialized Rhythm Lite Control, 20 x 2.1"", DC, 60TPI, aramid bead
REAR TIRE Specialized Rhythm Lite Control, 20 x 2.1"", DC, 60TPI, aramid bead
SADDLE Fuse SL, super light foam, hollow 8mm Cr-Mo rail w/ rail brace tube
SEATPOST Alloy, 2 bolt, no offset, 25.4mm
STEM Fuse SL, forged alloy, 2pc. moto-style clamp, top load, 50mm extension, 1-1/8"" A-Head
HANDLEBARS Cr-Mo 2pc., 675mm wide, 205mm rise, 12 degree back, 3 degree up sweep
GRIPS Fuse Locking Grip, inner clamp on style, Kraton surface, alloy bar ends
BRAKE LEVERS Tektro 275A, cold forged two finger lever, 15mm cable pull
REAR BRAKE Tektro FX-15, cold forged, double bushing, linear spring, 15mm offset arms, soft compound pads
PEDALS Specialized Lo Pro A1, 9/16"", sealed cartridge bearing, alloy platform, removable pins
HEADSET FSA Impact, 1-1/8"" threadless, integrated
SEAT BINDER Cr-Mo seat pin, allen key type
FORK Full Cr-Mo, 1-1/8"" threadless for integrated headset, heat treated Cr-Mo 1pc. CNC steerer, butted 1.8-1.2mm Cr-Mo 1-1/4"" blades, 5mm HT Cr-Mo dropouts for 14mm axle w/ gussets
FRAME 100% Cr-Mo, 21"" TT, MID BB shell, tig welded, double-butted and formed DT/TT/ST, externally relieved integrated HT w/ stamped ""S"" logo, gusseted BB yoke, seat-stay mounted U-brake bosses, integrated seat collar, 3D dropouts for 14mm axle w/ integrated axle tensioners


Geometry Chart

- Geometry

  16 20.5 19 20.75 21
Top Tube Length (Actual) 423mm 524mm 483mm 529mm 535mm
Seatpost Length 0mm 0mm 0mm 0mm 0mm
Seat Tube Length, Center to Top 207mm 242mm 238mm 255mm 239mm
Standover Height 474mm 573mm 561mm 570mm 560mm
Chainstay Length 299mm 349mm 347mm 352mm 347mm
Bottom Bracket Height 238mm 279mm 279mm 283mm 279mm
Seat Tube Angle 70° 72° 72° 72° 72°
Rake 29mm 29mm 29mm 29mm 29mm
Head Tube Angle 73° 74.25° 74.25° 74.25° 74.25°
Head Tube Length 100mm 100mm 100mm 110mm 110mm