Originally Posted by chaadster

I don' t recall that the SQ Lab units required grips and brake levers removed; the clamp just spreads open after the bolt is removed, and they "snap" right on the bar. That's certainly true for the carbon fiber ones, but I think also for the regular 410/411s, too.

Also, there are lots of hinged inner bar ends available-- e.g. Spirgrips https://www.rosebikes.com/spirgripsr...r-ends-2667879 -- so I wonder what Russ' particular take on the design will be?