Paddlecrab

My BB on the Venge seems to need servicing every few months. Is there a video or help site that can teach me how to do the maintenance my self?

Andrew R Stewart 

A number of sources for asked instructions. Try bike brand tech docs, crank brand same, Park Tools, goggle BB repairs/maintenance. Check out other brands to get a feel for the overall picture. Andy.

HillRider

I'll ask a more fundamental question; why do you think it needs service every few months? What are the symptoms? Typical bottom brackets need service very infrequently, say every couple of years or more, and cartridge types need no service.

Andrew R Stewart 

Not sure i agree with a BB never needing maintenance, of any type. No I'm sure I don't agree. I will agree that some do well for a long time because of good design and installation. But many don't do well. The lack of factory lube/anti seize between the shell and the cartridge and the lack of re tightening of the cartridge (BB or traditional cups) after initial use (epically in Aluminum shells) are just two reasons that we service fairly new BB units at work. Add extensive rain exposure and then actual bearings will suffer too many times. Andy.

Chris_W

The Venge uses a BB30 system, so the bearings don't last that long (much less than the old internal, threaded, cartridge BBs, and also less than external threaded BBs IME). If it is an S-Works Venge then it will have come with ceramic bearings, which are not worth the extra cost, so make sure your LBS is replacing them with steel bearings. To do it yourself, you should use special tools for removal and installation, which are not cheap. However, even a cheap headset press will do the job if you have the right adaptors that match the size of the BB30 bearings (this is what I use at home), plus you can push the old bearings out with brute force, but you need to be careful not to damage the BB shell.