ALPINESTARS Nucleon KR-TB Tailbone Protector - One Size 6702515-12 Regent-X Bend Helmet For use with '36-'84 Big

For use with '36-'84 Big Twin 4-speed

Now the flashing of the ECU is common place

Simple plug and play installation with no remapping needed

Silicone lining on inner waist to help prevent pant from sliding

Shoulder straps feature a specifically designed rotating buckle where the strap meets the chest protector to facilitate enhanced articulation of the arms

ALPINESTARS Nucleon KR-TB Tailbone Protector - One Size 6702515-12 Regent-X Bend Helmet For use with '36-'84 BigA lightweight and easy to use back protection extension for the lowest part of your spine Can be fitted on the Nucleon KR 1, KR R and KR 2 back protectors