OK, awhile back in this thread I promised I'd post some pics of the ATS drive installation. Well here goes.
I rented the tool set from ebikessf.com
. They have an excellent installation video
that was my guide. Renting the tool set was about $50 all told (that's rental plus shipping to me/back to ebikessf). Refund of $350 deposit was prompt. Very happy with how this is going so far...
Renting the tool set was very worthwhile, as I bought 3 ATS drives to install on 3 bikes. So, my cost per for installation is about $18.
Here are the pictures.
The most important part of the tool set: The chamfer tool is centered in the picture.
Here's bike #1, my spare bike. It's a 2007 Dahon Jetstream with NuVinci N360 rear hub. A great, versatile commuter bike. The ATS SpeedDrive will give me more gear range without the hassle of putting front chainrings on a folding bike. Here's the BB shell prior to chamfering.
A crank puller and bottom bracket removal tool are a must.
Here's me, using the chamfer tool the hard way (there are two springs, use them as shown in the video or get ready to spin that nut on the right a whole lot more than you need to)
A bike stand would have been nice, keep my back from aching, but it's easy enough to chamfer the BB with the bike upside down on its bars
Side 1: 45 degree chamfer, smooth and easy:
Side 2: Just as easy, but starting to get the hang of it so I didn't need to take the tool off & inspect quite as often
The "nut" you use on the left crank size has the mating 45 degree chamfer and can be used on both sides to gage depth
Once I got everything chamfered, I tried to mount the drive tightened to specification. But, the nut bottomed on its threads before I could apply torque. I had to order thicker spacers (they come in 0mm (pictured, I think), 0.5mm, 2mm, 4mm and 6mm). The spacers help with my problem (BB too narrow) and probably chain alignment too - which is why I ordered some 2mm and 4mm spacers.
Here's the spacer cone the drive arrived with.
My rental of the tool set from ebikessf was for one week. Though I was done with the chamfer tool (on all three bikes), I still needed the rest of the tools - especially the "box spanner" for tightening the bottom bracket nut - once the new cone spacers arrive. I suppose I could have called/asked to stretch my rental a day or two if I thought the larger cone spacers would arrive imminently, but I was not comfortable with the shipping timeline on the spacers.
So, I bought my own box spanner from Utah Trikes
. I bought some of my cone spacers from them, and the shipping was something like $9 flat rate, so why not? If I need to remove/service the Speed Drive, having my own spanner can come in handy. If I thought a bit longer about the purchase I would have had them throw in this kit
, but since I missed the window on fixed price shipping I'll just improvise with tools I have on hand.
I'm still waiting on my spacers - once they arrive I'll show the rest of the installation.