Bengt Weil
Member
I had been looking to add helmet locks but was not satisfied with the current alternatives for mounting locations. My favorite to date had been to mount them under the plate used to mount aftermarket trunks, but that example did not work with the Yamaha trunk mounting plate, so this is what I offer as an alternative.
This is the left side (rider's helmet lock side) - First, I removed the forward bolt for the muffler mount bracket and re-installed after applying blue lock-tite (habit). Then removed the rearward bolt and replaced it (again using blue lock-tite) with a lower profile metric allen bolt to get the needed clearance for the lock assembly to sit over this area. Drilled the small hole (depth and diameter) to just fit the "pin" on the lock assembly, after calculating the correct position. On the underside of the lock assembly, I had to slightly grind down the portion of the lock cylinder that protrudes beyond the metal plate held on by two tiny screws to get proper clearance over the new low profile allen bolt already installed. At this point, the lock assembly was positioned in position and the larger through bolt hole was drilled and slightly countersunk:
Bolted on the lock assembly:
Helmet securely locked:
Another look at locked helmet position:
Passenger side, helmet doesn't sit quite as nicely, but works fine:
Sorry about the small images - I'm just figuring out how to post pictures for the first time.
This is the left side (rider's helmet lock side) - First, I removed the forward bolt for the muffler mount bracket and re-installed after applying blue lock-tite (habit). Then removed the rearward bolt and replaced it (again using blue lock-tite) with a lower profile metric allen bolt to get the needed clearance for the lock assembly to sit over this area. Drilled the small hole (depth and diameter) to just fit the "pin" on the lock assembly, after calculating the correct position. On the underside of the lock assembly, I had to slightly grind down the portion of the lock cylinder that protrudes beyond the metal plate held on by two tiny screws to get proper clearance over the new low profile allen bolt already installed. At this point, the lock assembly was positioned in position and the larger through bolt hole was drilled and slightly countersunk:
Bolted on the lock assembly:
Helmet securely locked:
Another look at locked helmet position:
Passenger side, helmet doesn't sit quite as nicely, but works fine:
Sorry about the small images - I'm just figuring out how to post pictures for the first time.