Thats pricey .. half the price of a XT di2 rear mech.
Its Di2 .. chain has dropped once and I don't even CX, chain is correct length, I just want to safeguard it. Part of me wishes I went with XTR Di2 but its mad pricey. XT is more palatable but a chaincatcher would be a cheap fix hopefully.
k edge cx chain guide
http://www.jensonusa.com/!Ng8flbdw62YIxhyOTk1pOw!/K-Edge-Cross-Chain-Guide?utm_source=FRGLUK&utm_medium=organic&cu=GBP&pt_source=googleads&pt_medium=cpc&pt_campaign=&pt_keyword=&gclid=COSo9t28vtACFcW4Gwod4t4LXA
PRO buyer level.
Or just an old modified front mech? Or a type 2 rear d and ride smoothly?