OTK HST MG Front Hub Complete - l.95mm (25mm)

The OTK HST MG Front Hub Complete - 95mm (25mm) (part 0103.C0EKIT) is the standard-length magnesium front wheel hub kit for OK-class OTK kart chassis running the HST front hub system. Fitted with a 25mm stub axle bearing bore, this is the most commonly selected front hub length for OK specification. Supplied as a complete kit including the hub body, bearing, spacer, and locating ring. A genuine OTK spare part.

Key Specifications

• OTK Part Number: 0103.C0EKIT
• Vendor: OTK
• Material: Magnesium alloy
• Stub axle bearing bore: 25mm
• Hub length: 95mm
• Hub system: HST (front brake compatible)
• Supplied as: Complete kit (hub, bearing, spacer, locating ring)

Chassis Compatibility

• Tony Kart: Racer 401 RR, Racer 401R, Racer 401S, Racer 401 T, Racer 401 TDX (OK)
• Kosmic: Mercury RR, Mercury R, Mercury T, Mercury TDX (OK)
• Exprit: Noesis RR, Noesis T, Noesis TDX (OK)
• LN Kart: LN Four, LN Four T, LN Four TDX (OK)
• Redspeed: RX RR, RX T, RX TDX (OK)
• CS55 MY2025
• EOS
• Gillard: TG17 MY2025, TDX

Buying Advice

The 95mm front hub is the standard OTK OK-class selection. Three HST 25mm lengths are available: 80mm (short, KZ), 95mm (standard OK), and 110mm (long, KZ). Front hub length affects front-end lateral positioning, grip balance, and steering feel. Refer to your chassis documentation to confirm the correct length for your class and setup. Individual replacement parts including the 25/42x12mm hub bearing and bearing spacer are available separately.