Kawasaki ZZR600 titanium wheel spindle and bolt set
Imagine my suprise when the Harley wheel spindles turned out to be for a Kawasaki! My customer has ordered bolts for a Harley caliper before now so i guessed they were for a Harley!
It doesn’t matter to me what bike it is, i just love making parts for bikes regardless of make or model, i don’t discriminate, though i will confess that if its for a Ducati i do get a little extra thrill!
These parts weren’t all straightforward, drilling the rear spindle was problematic as its a 13mm hole all from one end, with that size it has a tendency to run off as there isn’t the rigidity in the drill to cope.
Even on the subframe bolt which is ‘only’ 289mm the deflection was 6 thou.
This process usually has the milling machine dancing around the workshop! it had my neighbours washing maching rattling!
The original has much smaller sockets in the ends, so I’ve done them 19mm which saves loads of weight and i think looks a lot better.
My customer supplied the 22mm socket he’ll be using to tighten them up with so i could mill the hex so its a perfect fit making it less likely to damage the head or slip off whilst torqueing up.
A bolt with a nipple-ised head!
The weight savings are:
Original rear wheel spindle 537g, titanium = 309g
Front wheel spindle (complete with sleeve) 494/234g
Subframe bolt 454/240g
total weight saving 702g
The bolt with the nipple head weighs 152 as original, in titanium its 89g, saving 63g