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On servicing...
Are SP hub dynamos user serviceable?
Alas, SP hub dynamos are not user serviceable and indeed we are aware of no hub dynamos that are based on manufacturer’s recommendations. Any attempt to service a SP hub dynamo will void its two-year warranty. We have received quite a number of requests from consumers on how they might service their hubs even accepting that attempting to do so would void their two-year warranty. They accept this risk thinking that this would save the need to disassemble and rebuild the wheel. Unfortunately, the design of SP hub dynamos like that of many other brands requires disassembly of the wheel for bearing replacement. Furthermore, the delicate generator mechanism housed within the hub body must be re-calibrated to tolerances of less than a millimetre each time bearings are replaced. Failure to carry out this operation properly (which is likely without expert knowledge, experience and tools), will generally result in catastrophic failure of the generator mechanism after a period of use. SP engineers have considered making their hubs user serviceable (with much prodding from IDC at the behest of our technically savvy testers). But the expertise and equipment required to carry out recalibration of the generator mechanism each time the bearings are replaced presents a technical hurdle that SP engineers, and indeed all other hub dynamo manufacturers we are aware of, have so far declined to attempt.
atk-
The hub have 2 years wuarranty or 20.000 k (incluyed the bearings).
I have used twohubs (testing for SP), and I have exceeded 20,000 k using in the worst conditions. So hard than I need to replace before the rim (with 19.500 k) after a hard winter.
Finally I replace the first hub with 25,800 k, until I began to notice slack on the left bearing, while the operation was still correct and electronics intact. .
The second wheel I'm still using, and It's the same that I used on the TransAm Bike race after tested 7.000kms. Actually have 20,580 k and looks nice.
You can send me the hubs (If I sold them) to replace bearings because they are cheap, but I think it's not a good option If you need to pay the shipping cost +10€ by the bearings and 30€ by hand-work.
You can find me on the SP catalogue. :)
https://issuu.com/borjoulin/docs/sp2015dm?e=8884331%2F8834580
CarlosBI
Did you know straight away after? I forded a river over the weekend that didn't actually submerge my hub but alot of water got thrown up.
Anyone know how to regrease an SP dynamo hub?