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http://www.igus.eu/wpck/2799/app_mountainbike?C=DE&L=en
Indeed and plastic ones too!!!
(back in tester's day they'd have been phosphor bronze)
I upgraded my commuter from Claris to Apex-1 a few weeks ago and really liking it. Just using the stock 42t chainring for now but tempted to replace with a 38t or similar given the chubby tires fitted. I do recall reading something about the Apex derailleur having just sleeves on the wheels instead of bearings like Rival+ have so there's that - marginal gains and all. Can't say I notice if that's the case compared to my other bikes though. Everything feels very solid and reliable. Planning on taking it on some long rides soon.