My winter bike wrenching plans included several crankset swaps so I invited one of my 11 year old grandsons to work with me. We completed 4 crankset swaps. The Ketts and my Rans SWB now all have short (148mm - 152mm) cranksets. Mrs. Grouch's Greenspeed has been returned to it's original configuration and is up for sale.
It's always enjoyable working with Tyler. It makes me feel useful to show him detail stuff like starting bolts with your fingers before cranking on them and using the torque wrench. I wish that I had more projects that we could do together. Being a grandad rocks!