Anyone know if this is possible? Just a random thought. And Yes I know one is SRA and the other is IRS. lol
Funny thing, I was just looking in the service manual last night and the rear spindles on the 700XX ride inside bearings in the rear knuckles. They are machined to fit inside the bearings, and i highly doubt the 450R spindles would work, as they wouldn't be machined for the bearings.