Fischer’s don’t come with rear stand spools but they do come with mounts so I just needed to make some spools. The MRX is heaver than the SV’s it will race against so I want my spools to be light. Note the trimmed bolt head and the drilled out center saving 3 grams from the normal bolt on the right.
I recessed the bolts far into the spools so I could use shorter bolts and so the spool will protect the head of the bolt in a crash. It’s hard to remove bolts that are damaged.
Total weight is 38 grams for both. This is un-sprung weight so I want as little as possible. They look good too.