Kabuto LEFF, Instruction Manual

The length of the left side buckle of the user is not changeable. 

Attention!

Fastening the strap buckle

1

The strap buckle is important for fitting the helmet to your head securely.
Make sure to fasten the strap buckle firmly. 

Strap buckle

Release

button

 How to fasten the strap buckle

How to release the strap buckle: 

Push the release button

Strap buckle

Push

Push

Release

Be careful not to pinch your 

skin when fastening the strap 

buckle.

WARNING!

●

Make sure to fasten the strap firmly. It is dangerous to ride a bicycle without 
fastening the strap.

●

If the strap buckle is not fastened (ie, you don't hear it click), or if it is fastened 
loosely, the helmet may come off in an accident, leading to death or serious injury.

CAUTION!

Try on the helmet before use

Adjusting the strap and adjustment locks

2

CAUTION!

●

Make sure to follow these instructions for 

adjusting the strap. Otherwise, the strap may 
become loose and the helmet may come off.

●

If the strap buckle is inserted upside 

down, the strap will be loose and the 
helmet will not fit your head firmly. If the 
strap buckle is removed from the strap 
completely, make sure to place it back in 
the correct direction.

Adjusting the length of the strap

Side view

Shorten
Lengthen

Strap

Strap buckle

Release button

Bind the strap with the rubber band at the end.

Make sure the strap 

buckle is facing the 

correct direction. 

Adjust the strap to fit your head. It generally should be just long enough to leave 

space for 2 to 3 fingers horizontally when fastening the strap.

Try on your helmet before riding, and adjust the length of the strap, the position of the 
adjustment locks and the fit of the XF-2 Adjuster to fit the helmet to your head.

See:     

3

   Adjusting the XF-2 Adjuster    for how to adjust the XF-2 Adjuster