I can't see the Shimano one for sale anywhere yet but pinkbike says it's out now?
Think it was the end of June/start of July it was available, so literally days.
My issue is still the price. £104 from bike-discount. It's twice the cost of a rear mech for...well..half a rear mech. And it will wear out. The Shimano one looks to be a different colour rather than that minging green as well. ;o) Aka a silvery colour?
Price is subjective of course, but comparing it against an XX1 system it's a lot cheaper. It also makes more sense for us as there is a lot of parts cross compatibility between our bikes, and because of the new stupid XX1 freehub drivers it would mean 2 whole new systems, whereas this runs off a normal freehub.
I run an XX cassette on my bike anyway, so this is poverty spec by comparison It should easily last 12 months though. Even the soft cheese alloy 36T ring on my XX cassette lasted well.
The colour is more grey than green in real life - doesn't match the normal silver of a cassette, but it doesn't look bad at all.
I think there is a market for someone to make just a 40 tooth that can slot in the back behind the existing cassettes and do away with a ring of your choice further down the range. In fact, there is such a product out there someone has made. I cannot find it now but there was a sprocket you could buy on ebay that was around 40 tooth that was designed to be ran in this way. The trouble was that it was very heavy and not very "machined out" to save weight. It was just some guy knocking them out on a cnc mill I think.
If the General Lee was cheaper I would consider it. I'd run it with a 34 or 36.
You've answered your own question there. The Leonardi cassette has had quite a lot of machine work to make it a sensible weight, that machining time costs money.
Hob Nob mentioned shifting with Shimano & I had exactly the same issue, could never get it spot on and had to run it slightly slow climbing the cassette so that it would drop back down correctly. I have swapped over to Sram X9 now and it works perfectly. Not sure why, but it does
Glad it's not just me! I think what it does is emphasises the system 'dwell' that you read about on the Park Tools website for setting up rear mechs. I've done similar, so it's slightly lazy on the upshift to ensure it drops down the block nicely (the issue was 4th-5th gear, swapping from the modified to the SRAM bit - all the others were fine).
This kind of sums it up here:
Modern indexing shift levers use dwell, which is a hesitation between movements in the lever. These hesitations are timed to match the movements of the derailleur and the spacing in the rear sprockets. The design of some derailleur and shift lever brands requires more of a push (or twist) of the lever to complete the shift. The amount of extra push or twist is not consistent between manufacturers and each rider must learn the particular attributes of his or her system.
Which is what I do when I shift anyway, my wife however...
Put it this way, I can't wait for proper Di2 on an MTB. She presses the button & expects instant, perfect shifting every time, regardless of conditions, incline, full load etc.