Used clutch master cylinder that was on my 748. As i'm building a stock 748 SP I no longer need it. I got this off eBay originally and never had a problem with it. I believe it cam off a 848 but I think its the same as the 1098 and 1198 unit It does make a nice upgrade for a 748/916/ect if you want a radical master cylinder. Looking for £80
now on ebay and already with a bid so may as well so close this. https://www.ebay.co.uk/itm/332869758955?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649