FRONT FORK SPRING PERCHES SHOWA 49mm 475mm SX (PAIR) K-TECH 111-300-520

K-Tech Fronk adjustable fork spring perches are supplied as a pair for Showa 49 mm forks with 475 mm springs. Designed for supercross (SX) set-ups, they replace the original plastic perches and allow spring preload to be adjusted.

Features

• Adjustable preload allows the original setting to be reduced; the standard fork perches do not provide this adjustment.


• Optimised oil flow improves bottoming resistance in motocross (MX) and supercross (SX) use.


• Coated guide bushes promote smoother fork action.

Specifications

• Fork diameter: 49 mm


• Compatible spring length: 475 mm


• Original fork preload reference: 5 mm when fully extended


• Perch material: aluminium


• Guide bush coating: Teflon

Cross-Reference OEM Part Numbers

• K-Tech: 111-300-520

Vehicle Fitments

HONDA

• CRF250R (2018–2024)


• CRF250RX (2019–2024)


• CRF450R (2017–2024)


• CRF450RL (2018–2027)


• CRF450RWE (2019–2024)


• CRF450RX (2017–2024)


• CRF450X (2018–2020)

SUZUKI

• RM-Z450F (2018–2026)

KAWASAKI

• KX250F (2025–2026)


• KX450F (2019–2026)


• KX450XC (2021–2023)

DUCATI

• Desmo450 MX (2025–2026)

KOVE

• 450 Rally (2024–2026)


• MX 450 (2025)