Based on my previous experience, it will handle the torque. Our Moon Buggies were usually 150 to 200 lbs and we were using significantly lower gears (much higher torque). We did ocassionally over torque them but even when we did, it didn't damage the Nexus itself. What happens is, the small dimples that hold the cog on the Nexus will shear off, all you have to do is replace the cog.

We have been putting a lot of miles on our Nexus equipped Twinn for the last few months. It has worked really well for us as beginning tandem riders. It makes the Twinn much more enjoyable which is the whole reason we got one.

--Guz