Received a pair of Suntour PL-NX-150 alloy folding pedals & Power-Grips today - courtesy of Mike Librik at Easy-Street Recumbents
in Austin Texas.
BIG thank you to Mike who patiently answered all of my questions. We must've exchanged a dozen emails.
To mount a Power-Grip, a pedal needs at least three mounting holes - two of them of the type use to secure a toe-clip.
The PL-NX-150's are drilled for toe-clips or the easily-removed reflectors which came installed.
The challenge with a folding pedal is the toe-clip/reflector holes are placed farther outboard than on a conventional pedal.
The Power-Grip instructions would have you put the metal band on the front of the pedal - mounted with supplied bolts to the toe-clip holes.
With a bit of tweaking, I found an easy solution: put the metal band on the BACK of the pedal with the strap attach-point inboard, instead of outboard. (the strap still has the same orientation as a stock install)
To prevent the metal band from interfering with the folding mechanism, I put three of the supplied washers under the inboard hole to add clearance for the sliding bolt. Difficult to describe but I hope the photos help.
Here's a link to the pedals on Suntour's site: http://www.srsuntour-cycling.com/standard.xml?vpID=132
...and the Power-Grip site: http://www.powergrips.com/
p.s. I ordered the XL PowerGrips and had to trim a few inches off. They're HUGE! Unless you wear a size 16-EEE shoe, I'd stick with the regular sized Power-Grips.
Revision two: adding a bend to the metal bar used to anchor the Power-Grip.
Instead of washers for slide-block clearance, the bend does the trick. Easy to do with a couple of wood blocks and a mallet.
Also replaced the Philips head bolts with stainless, Allen-head bolts.
What can I say? It's my day off and I'm obsessed with my bike.