hello, mate,
I had a HRC front wheel on my 18 and i gave it to Racer38 before i sold the bike, in return he gave me a bog standard front (now the front for the 18 was the same as my 21) the spacers for the hrc wheel where to small and i needed the spacers for the standard wheel, Racer robbed his 21 of some spacers and Ta da it all worked fine, I think youll find that you need new spacers, Almost 100% certain as the hrc spacers where to short on the standard wheel. Hope this helps BY the way the NSR standard spacers are not the same lentgh so order in a pair. PS liked your video.