I don't really understand how a carbon brush could lube the chain ? Wouldn't it also be putting more wear on the chain ?
Looking at the website it seems to be a carbon holder with a stick of some sort of solid lube held in it, replacement sticks of lube are €34 though. Not sure whether this is one things that look like a good idea but is just fixing a problem that isn't really a problem
It depends on your bike use. In my world, I would eat through the carbon refills, cheaper to but new chains. So I stick with the tried and trusted Castrol lube. Yes it flings, but if used regularly, it keeps the chain protected in all weathers and I do not have any issues with binding links. 20K+ on a Blade chain used through winter, can't ask for more.
. Well I think they mean the graphite (graphite is an excellent dry lubricant) member of the carbon* 'family'. Possibly mixed with a bonding agent to stop it breaking up, pure graphite in solid form being very brittle. If I understand it correctly, in practice what probably happens is that, initially the chain links would quickly cut down through the block of carbon/graphite until the rollers came into contact with it. After that wear would slow dramatically and graphite 'dust' would, I assume, penetrate between the individual parts of the chain. *There are several allotropes of carbon of which the best known are graphite, diamond, and amorphous carbon. The physical properties of carbon vary widely with the allotropic form. For example, diamond is highly transparent, while graphite is opaque and black. Diamond is the hardest naturally-occurring material known, while graphite is soft enough to form a streak on paper. (Wikipedia quote)
You used to buy graphite as a dry lube for the bearings on skateboard wheels (In the days before sealed bearings were common ) Excellent as a lubricant. However... That's not why we lube chains. We lube them to stop the o-rings from drying out and leaking the lube out... they're sealed units. Graphite won't help an o-ring chain... I'm thinking of a pumped scott oiler myself. But not sure where I'd put the reservoir. My 600RR had it under the LHS fairing. You had to remove the fairing to fill it, a right PITA. No room under my rear seat though... H - Of course using this, if the o-ring did dry out, you'd get graphite inside the roller to lube it instead of the lube already there. So it should in theory help prolong the life compared to an un-lubed chain...
