I have a Santana Fusion that came with Hadley hubs and 26" FIR rims. One rim popped at a seam after 3 years and the second just went a year later. I run the Avocet Cross II (26x1.5) which I fine a great improvement over the Richie Crossbites (26x1.4) that came with the bike. We don't put that many miles on (3 rides per week of 15-20 miles - half on road, half on cinder/crushed limestone). My bike shop says with a 40 spoke set up and 26" wheels, the options are limited. They say the only options are the FIRs or Velocity Aeroheat. This being my first tandem, is it usual to need to replace rims that often? I've had the same rims on my road bike for 20 year. Anyone else have experience with the FIRs or Velocity rims? I've read that Sun Ryno Lites are a possibility but my bike shop says they are too wide for my needs.