By limiting the depth of the tapped handle bar you can firmly bottom out the threaded insert preventing them from loosening

Better grip

com/support-docs/NPDLC/Fiches/RMS-7084B

Longer wind-resistant panels at front and back for greater protection

It is useful not only for maintenance of laced wheels

All Balls Racing - Wheel Bearing & Seal Kit (25-1693) Supplier-Pro Moto Billet By limiting the depth ofAll Balls high speed bearings are manufactured to ABEC 3 precision levels. Triple lip rubber seals keep the grease in and the water and dirt out. Chevron SRI 2 grease contains rust and oxidation inhibitors ( 29 C 177 C). Double lip type TC seals with stainless steel garter springs.