When I was trying to fit the biggest tire possible on our the Canonndale MT800 we had, I took a big Gazzalodi and planned the knobs down with my wood plane so it would juuuust fit between the chainstays. I was REALLY surprised a few weeks later when I notice the tire was actually wearing into the aluminium of the chainstay where it was rubbing just a bit. Never imagined it would do that!... Rubs a tiny bit on the left chainstay.
Can you show some pics of the Knard/wheel setup?The good: handling, esp on tight singletrack at slow speeds. Low-end brakes seem quite good. Equally low-end drivetrain performed well. Loved having the 3" Knard up front, for traction and a bit of float in sand. Ride quality was very good, not harsh like I was expecting from an alu frame.
Not so good: there is a bit of front tire toe overlap. I have size 9 feet. Not a big deal, just noticed it a few times. Stock grips are not cushy enough. The bottom bracket is low, so we had a few pedal strikes on singletrack. Wakes you right up!
Overall I'm very happy with the bike. It will work well as a gravel road/2-track/gentle singletrack bike. If I wanted a true singletrack tandem I'd look elsewhere, probably Fandango.
Your Stoker will thank you. Mine did - the only major upgrade so far on our Lapierre was getting a LT Thudbuster. But my stoker has had a ST on the road tandem for a year now - and on that our riding life is much better - I don't have to call all the little bumps (though I still call all the big ones). It's a bit different off road, and I call everything. I suspect it's quite amusing for anyone else on the trail to hear us.Good tip on the LT. I was initially thinking that this would be a gravel road bike, but now that we will be using it on singletrack, I'd better get a LT!