Hi Joe. Sorry in advance for shitty answer but Amazon. A claw style c spanner with a rectangular claw end (not a pin) should work. Cheap as chips but they work fine. Mine used on Pani R TTX pictured. I guess size is the same. Edit. From memory the v4s shock may be considerably bigger. I’m sorry, can’t quite remember. But either way, buy one above and bigger one and you should be good.
I know these are really cheap but so long as you take your time and are careful they work fine. I added the edit after remembering I bought an Ohlins c spanner for my V4s when I had it. Wrong size
Just bought this one. Will only need it once but always handy to have one knocking around in the toolbox. https://www.ebay.co.uk/itm/401968362064?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649
Pretty sure I’ve got one. You can borrow it if you like. I’m just round the corner from you (about 500 yds).
500 yards?! Did you buy that seat from me a few years ago? Thanks for the offer, if that eBay one doesn’t fit I’ll give you a shout if that’s ok?
AELLA offer spanner for Ohlins TTX: https://shop.aella.jp/item/IS00159N11013.html You can buy them from AELLA distributors such as Belissimoto or Motovation