Today's utility ride was my usual trip to Sainsburys, but it was combined with a road test of some fettling which may be of interest to commuters.
Or at least, of interest to those of you who run a Shimano Alfine hub gear bike.
I've just done an oil change, recommended at 500km which passed some time ago, but better late than never.
My first Alfine 11 conked out, but was replaced free of charge outside the warranty period by Madison Shimano.
The current one has been on the bike for a year or so.
The oil change procedure is straightforward, if fiddly.
Undo the tiny plug, attach a syringe, suck out the old oil, replace with 25ml of new, spin the wheel, change gears a few times, then suck out the oil again and refill with another 25ml of new.
The oil I sucked out was close to black and had a lot of filings in it, so changing it may have done some good.
I might be imagining it, but I think after the oil change the gear changes are a bit sweeter.
One thing I am sure of is the tendency for the chain to creep forwards when freewheeling has gone.
Shimano's kit to do the job is expensive.
The one I used for £20 looks just as good to me.
http://www.ebay.co.uk/itm/Service-K...204765?hash=item2a2fa898dd:g:xcgAAOSw-vlVk-pH