• Two-piece structure that attaches tires and wheels with steel core nuts with excellent strength and durability, and attaches an aluminum shell with bright color alumite surface treatment .
  • The 19HEX aluminum shell is tightened with a hand tightening adapter (A-87KP), so it can be easily installed and replaced without worrying about scratches caused by a wrench.
  • 20 core nuts (16 17HEX nuts and 4 lock nuts) Lock & nut SET prevents theft.
  • Shape: Knurled type (total length: 53mm) Closed end type (total length: 53mm / 35mm)
  •  Color items: Red / Blue / Gold / Black
  • Lock & Nut SET (20pcs) Nut 16pcs / lock Nut 4pcs

  • SIZE: M12 × P1.5 / M12 × P1.25

  •  Overall length: 53mm

  •  Width across

    flats : core Nut 17HEX ● Brim diameter: 22mm (key adapter outer diameter 23mm)

  • Effective screw thread length: 28.5mm
  • Nut Weight per piece: 47g


  • Core nut (17HEX) dedicated adapter (outer diameter: 24mm) 1 piece
  • Lock core (19 / 21HEX combined) key adapter (outer diameter: 23mm) 1 piece
  • Aluminum shell dedicated resin adapter (Outer diameter: 25.5 mm) 1 piec

LEGGDURA RACING Shell Type Lock & Nut Set

Product No.SizeColorJAN code
RL53-11RM12 x P1.5Red4965581 340005
RL53-11UM12 x P1.5Blue4965581 340012
RL53-11AM12 x P1.5Gold4965581 340029
RL53-11KM12 x P1.5Black4965581 340036


Product No.SizeColorJAN code
RL53-13RM12 x P1.25Red4965581 340043
RL53-13UM12 x P1.25Blue4965581 340050
RL53-13AM12 x P1.25Gold4965581 340067
RL53-13KM12 x P1.25Black4965581 340074

Duralumin Shell RL53 20pcs

Aluminum shell (for knurled type) 20 pieces

Product No.ColorJAN code

Core Lock & Nut SET 20pcs

Reducer Racing Shell Type Nut
( Core Lock & Nut Set) 20pcs

Product No.Size SizeJAN code
LN11M12 x P1.5340906
LN13M12 x P1.25340913


  • Accessories:
    Core nut (17HEX) dedicated adapter (outer diameter: 24mm) 1 piece
    Lock core (19 / 21HEX combined) key adapter (outer diameter: 23mm) 1 piece

■ Replenishment parts (1 piece) 17HEX core Nut

SizeProduct No.ColorJAN code
M12 x P1.5ZLN1BBlack4965581 341002
M12 x P1.25ZLN3BBlack4965581 341019

■ Replenishment parts (1) Lock core Nut

SizeProduct No.Color
M12 x P1.5YLR1BBlack
M12 x P1.25YLR3BBlack

■ Replenishment parts (1 piece) Knurled type aluminum shell (* This aluminum shell is not compatible with reducer bolts.)

Product No.ColorJAN code
SLRNRRed4965581 341125
SLRNUBlue4965581 341132
SLRNAGold4965581 341149
SLRNKBlack4965581 341156

Dedicated adapter (1)

Nut side 17HEX
Wrench side 21HEX
A10 L60
JAN code
4965581 511702

Key adapter (1)

19/21 HEX combined use

Resin adapter for aluminum shell (1)

(Aluminum shell side) 19HEX
Outer diameter 25.5mm / Overall length 80mm
JAN code: 4965581 530345