USD$ 🌍 Worldwide shipping from Taiwan → nickhobbies.com ｜ 🇺🇸 US orders → nickhobbiesusa.com

Log in Sign up
Cart (0)

Parts / Option Parts

Take your RC car's performance to the next level with Koswork's option parts and hop-ups. From drivetrain upgrades and suspension components to chassis reinforcements — precision-engineered parts built for competitive RC racing.

Koswork Kyosho 12mm Blue Big Bore Buggy Shock Set (F & R) KOS04351-1
Koswork Kyosho 12mm Blue Big Bore Buggy Shock Set (F & R) KOS04351-1
$90.00
Associated RC10B74 Gearbox
Associated RC10B74 Gearbox
$12.00
Associated RC10B74 Center Diff Spur Gears, 72T/48P, 78T/48P
Associated RC10B74 Center Diff Spur Gears, 72T/48P, 78T/48P
$10.00
Associated RC10B74 Rear Suspension Arms, hard (No Shim)
Associated RC10B74 Rear Suspension Arms, hard (No Shim)
$10.00
Koswork Tire Glue (Medium) 20g w/Pin Cap and Tips KOS50106
Koswork Tire Glue (Medium) 20g w/Pin Cap and Tips KOS50106
$8.00
Associated RC10B74 Front Suspension Arms, No Shim
Associated RC10B74 Front Suspension Arms, No Shim
$10.00
Associated B64 Ring Gear, 42T
Associated B64 Ring Gear, 42T
$15.00
Koswork Threaded Collar w/O-rings for 12mm Shock AE Tamiya (2) KOS04812
Koswork Threaded Collar w/O-rings for 12mm Shock AE Tamiya (2) KOS04812
$9.00
Koswork O-Ring 14x1mm for Threaded Collar 12mm Shock AE Tamiya (4) KOS04811
Koswork O-Ring 14x1mm for Threaded Collar 12mm Shock AE Tamiya (4) KOS04811
$2.50
Associated B64 Center Dogbones, gear diff
Associated B64 Center Dogbones, gear diff
$10.00
Koswork O-Ring 8x1mm for Lower Shock Cap (4) 12mm & 13mm Shock AE KOS04809
Koswork O-Ring 8x1mm for Lower Shock Cap (4) 12mm & 13mm Shock AE KOS04809
$2.50
Koswork O-Ring 12x1mm for Shock Cap 12mm Shock (4) KOS04806
Koswork O-Ring 12x1mm for Shock Cap 12mm Shock (4) KOS04806
$2.50
Associated B64 Gearbox Shim Set
Associated B64 Gearbox Shim Set
$5.00
Koswork Kyosho Front Inner (for 3x43mm) Hardened Hinge Pin/Suspension Shaft (2) Ultima & JJ KOS04346
Koswork Kyosho Front Inner (for 3x43mm) Hardened Hinge Pin/Suspension Shaft (2) Ultima & JJ KOS04346
$9.80
Koswork Tamiya 6mm Aluminum Clamping Wheel Hex (4) Blue KOS04408
Koswork Tamiya 6mm Aluminum Clamping Wheel Hex (4) Blue KOS04408
$16.00
Koswork Tamiya 5mm Aluminum Clamping Wheel Hex (4) Blue KOS04407
Koswork Tamiya 5mm Aluminum Clamping Wheel Hex (4) Blue KOS04407
$16.00
Koswork Kyosho 3x49mm New Style Ti Coating Shock Shaft (2) Mid/Turbo/Optima/Javelin/Ultima KOS04314-2
Koswork Kyosho 3x49mm New Style Ti Coating Shock Shaft (2) Mid/Turbo/Optima/Javelin/Ultima KOS04314-2
$9.50
Koswork Kyosho 3x37mm New Style Ti Coating Shock Shaft (2) Mid/Turbo/Optima/Javelin/Ultima/Turbo Scorpion KOS04314-1
Koswork Kyosho 3x37mm New Style Ti Coating Shock Shaft (2) Mid/Turbo/Optima/Javelin/Ultima/Turbo Scorpion KOS04314-1
$9.00
Tekno TKR9164C – Hinge Pin Brace (CNC, 7075, -2mm LRC, EB/NB48 2.1, D Block)
Tekno TKR9164C – Hinge Pin Brace (CNC, 7075, -2mm LRC, EB/NB48 2.1, D Block)
$29.00
Tekno TKR9163C – Hinge Pin Brace (CNC, 7075, -2mm LRC, EB/NB48 2.1, C Block)
Tekno TKR9163C – Hinge Pin Brace (CNC, 7075, -2mm LRC, EB/NB48 2.1, C Block)
$24.00
Koswork Kyosho Front/Rear 1.0/1.1/1.2/1.3/1.4/1.5/1.6mm Stabilizer Anti-Roll Bar (OPTIMA Mid) KOS04305
Koswork Kyosho Front/Rear 1.0/1.1/1.2/1.3/1.4/1.5/1.6mm Stabilizer Anti-Roll Bar (OPTIMA Mid) KOS04305
From $4.00
Koswork Kyosho Rear Optima Mid Stabilizer Anti-Roll Bar Set (w/ R1.2 bar) KOS04305R
Koswork Kyosho Rear Optima Mid Stabilizer Anti-Roll Bar Set (w/ R1.2 bar) KOS04305R
$21.00
Koswork Kyosho Front Optima Mid Stabilizer Anti-Roll Bar Set (w/ F1.4 bar) KOS04305F
Koswork Kyosho Front Optima Mid Stabilizer Anti-Roll Bar Set (w/ F1.4 bar) KOS04305F
$7.00
Koswork Kyosho Stabilizer Anti-Roll Bar Set (w/ F1.4/R1.2 bars) (Mid Optima) (Front & Rear) KOS04305
Koswork Kyosho Stabilizer Anti-Roll Bar Set (w/ F1.4/R1.2 bars) (Mid Optima) (Front & Rear) KOS04305
$25.00
Koswork Kyosho Hardened King Pin/Shaft 4x24.45mm (2) Ultima & JJ KOS04348
Koswork Kyosho Hardened King Pin/Shaft 4x24.45mm (2) Ultima & JJ KOS04348
$9.80
Koswork 3x8x2mm 3mm Aluminum Washer Blue (8pcs) KOS40308-2B
Koswork 3x8x2mm 3mm Aluminum Washer Blue (8pcs) KOS40308-2B
$5.00
Koswork Kyosho Ultima & JJ Carbon Rear Stiffener/Gearbox Brace KOS04361-18
Koswork Kyosho Ultima & JJ Carbon Rear Stiffener/Gearbox Brace KOS04361-18
$8.00
Koswork Kyosho Ultima & JJ Carbon Steering Link Plate Set (w/bearings) KOS04361-16
Koswork Kyosho Ultima & JJ Carbon Steering Link Plate Set (w/bearings) KOS04361-16
$9.50
Koswork Kyosho Ultima & JJ Rear Carbon Shock Tower Shock Stay 3mm (w/balls) KOS04361-12
Koswork Kyosho Ultima & JJ Rear Carbon Shock Tower Shock Stay 3mm (w/balls) KOS04361-12
$28.00
Koswork Kyosho Ultima & JJ Front Carbon Shock Tower Shock Stay 3mm (w/balls) KOS04361-11
Koswork Kyosho Ultima & JJ Front Carbon Shock Tower Shock Stay 3mm (w/balls) KOS04361-11
$22.00
Koswork Kyosho Mini-Z Garage 1/28 Car Box / Case 185x90x60mm KOS04371-5
Koswork Kyosho Mini-Z Garage 1/28 Car Box / Case 185x90x60mm KOS04371-5
$6.00
Koswork Kyosho Ultima Steel Heavy Duty Turnbuckle Set (6pcs, w/wrench) Ultima Series KOS04361-01
Koswork Kyosho Ultima Steel Heavy Duty Turnbuckle Set (6pcs, w/wrench) Ultima Series KOS04361-01
$21.40
Koswork Tekno CNC Shock Cartridge Spacer Guide Set EB410/ET410/MT410/SCT410 2.0 KOS04081-31
Koswork Tekno CNC Shock Cartridge Spacer Guide Set EB410/ET410/MT410/SCT410 2.0 KOS04081-31
$12.55
Koswork 90x200mm 1/10 Buggy Tire Tube / Mini-Z / Food Container w/Cap & Seal KOS14073
Koswork 90x200mm 1/10 Buggy Tire Tube / Mini-Z / Food Container w/Cap & Seal KOS14073
$4.00
Koswork Tamiya BBX Steel Heavy Duty Turnbuckle Set (6pcs, w/wrench) BB-01 KOS04405
Koswork Tamiya BBX Steel Heavy Duty Turnbuckle Set (6pcs, w/wrench) BB-01 KOS04405
$15.00
Koswork Kyosho M4 2x11mm Hardened Wheel Hub Pin/Screw (4) Mid/Turbo/Optima/Javelin/Ultima KOS04306
Koswork Kyosho M4 2x11mm Hardened Wheel Hub Pin/Screw (4) Mid/Turbo/Optima/Javelin/Ultima KOS04306
$4.25
Koswork Aluminum 7075 Servo Screw 3x7mm Blue (4) KOS40101BL
Koswork Aluminum 7075 Servo Screw 3x7mm Blue (4) KOS40101BL
$6.00
Koswork Tekno Aluminum Sway Bar Collars (4) Black EB/NB/ET/NT48 MT/SCT410 2.0 KOS04026
Koswork Tekno Aluminum Sway Bar Collars (4) Black EB/NB/ET/NT48 MT/SCT410 2.0 KOS04026
$10.00
Koswork M2 Aluminum Flanged Nylon Lock Nuts Mini-Z Blue (w/container) (5) KOS04371-1F
Koswork M2 Aluminum Flanged Nylon Lock Nuts Mini-Z Blue (w/container) (5) KOS04371-1F
$5.00
Koswork M2 Aluminum Nylon Lock Nuts Mini-Z Blue (w/container) (5) KOS04371-1
Koswork M2 Aluminum Nylon Lock Nuts Mini-Z Blue (w/container) (5) KOS04371-1
$4.50
Koswork Tekno CNC 13mm Shock Pistons 2x1.8mm (2) SCT/MT410 2.0 EB/ET410 KOS04081-42
Koswork Tekno CNC 13mm Shock Pistons 2x1.8mm (2) SCT/MT410 2.0 EB/ET410 KOS04081-42
$8.00
Koswork Tekno CNC 13mm Shock Pistons 2x1.7mm (2) SCT/MT410 2.0 EB/ET410 KOS04081-41
Koswork Tekno CNC 13mm Shock Pistons 2x1.7mm (2) SCT/MT410 2.0 EB/ET410 KOS04081-41
$8.00
Koswork Hard Case w/foam for Weight System 180x90x85mm (For SkyRC Bluetooth Wireless Weight Scale) KOS32408-11
Koswork Hard Case w/foam for Weight System 180x90x85mm (For SkyRC Bluetooth Wireless Weight Scale) KOS32408-11
$22.50
Protoform 1/28 Venturi GT Light Weight Clear Body (Mini-Z) (98mm Wheelbase)
Protoform 1/28 Venturi GT Light Weight Clear Body (Mini-Z) (98mm Wheelbase)
$23.99
Koswork Tekno Carbon ESC Speed Controller Tray MT410/SCT410 2.0 KOS04081-08
Koswork Tekno Carbon ESC Speed Controller Tray MT410/SCT410 2.0 KOS04081-08
$22.00