Dynamo Lights

Blergh. Bearings gone in my SP Dynamo hub after about 5,000km. Can't replace them :(

Time to spend a £shittonne on a Son I guess

Great solution.

Make sure you aren't changing axle standard in the near future ;)

QR Disc? Dibs

Still under warranty?

@MisterMikkel @coldharbour thanks.

Easy enough to add a 90 degree bend for bridges that you enter from below.

Have ordered some stainless rod. So will probably make 2 or 3 up, see if I can get them at least semi consistent (it’s all bent by heat/hand. No jigs or formers etc) and see if anyone is interested and take it from there.

I’d guess the mounting hole separation will be pretty consistent but I can put those nuts wherever really.

Could make them up to a certain point and do the nuts and the 90 degree bend or not on a ‘to order’ basis.

surely its not designed to be non replaceable?!

Yep, they have to be sent back to SP who delace the wheel to swap bearings

wtf where is this information please

Send it back if out of warranty. Link in their shop. 1000ntd = approx £24 plus postage plus ballache etc.

http://www.sp-dynamo.com/Store.html

theres my SON argument @hippy

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.

https://intelligentdesigncycles.com/page/faqs

Totally anecdotal but I'm sure I read somewhere about people ripping hubs apart to do bearings and getting them back together and working just fine. Think it was Shimano and SP hubs I'd read about.

I got the Velo orange bracket:

i like that position but it isn't ideal if you live in the UK and want to ride in Europe/US (basically anywhere else)

Also terrible visibility side to side.

Not that complicated to switch it over to the other side? Depending on routing of the cable obv...

Well, I'm convinced.

Oh except that both of my wheels have done far more than that distance and are still going strong.

SON are also non user serviceable.

The ‘dura ace’ Shimano dynos are supposed to be serviceable. Or am I imagining that?

So £135 for an E3 triple 2 would be considered good value right?

got a link?

All of the Shimano dynohubs use cup and cone bearings, no? IIRC you can back off the cones enough to regrease and/or replace the balls, but if you try and remove the whole hub centre there's a wire that's easily broken that then renders the electrics U/S.

Paging dyno-hub experienced mechanics...

Sorry, didn't look close enough, out of stock on bikester

You can service the bearings on one side easy enough. But I think when the other side is gone you have to 'send it back to Shimano' where they'll replace the internal assembly. I think buying the internal assembly part (and having a go yourself) isn't cost effective because of the price of the part.

Son can be serviced in the UK but I have no idea about SP.