Sure it is.. they change chains all day long, it's their business to know. Every chain they had in stock had the same number of links as mine that they just cut off.. they could easily have checked this BEFORE angle grinding my chain off..It's the shop's fault they didn't have a chain in stock to fit your non-standard sprocket? Pretty hard to judge the length needed until you get everything fitted up.
Thanks I will keep the old chain (which is actually a brand new chain as bikes new.) Shop did not have extra links though as the Honda RK chain link pins are non standard size. Shop only had D.I.D chains and those links do not fit Honda chains..Keep the new old chain and get the chain man to supply a couple of rivet links and a short length of oem 525 chain then you have a spare.
I always order extra links.
back when i was using the same bike to ride to time trials and compete we used to use spring links and a bit of chain along with sawn in half rear sprockets for a quick gearing change - then changing back t higher gearing for the run home - sometimes 200 miles.....
I know - but we only had small bikes and very little spare cash. one memorable trip was to north wales from Portsmouth on Friday evening with a one man tent and all my other bits in a rucksack. Snowed overnight and the trial was canceled - rode back half way before having to camp again - arrived back 1 am Monday morning and was at work by 0800 - mad. Couldn't do it now.