I really wanted to use the rack I bought next week.. but looks like I won’t be able to
come on, get creative!
– use the standard seat clamp, but replace the bolt wiht length of threaded bar of same thread size, but longer so it sticks out on each side, then one use nut to clamp tight to hold seatpost, then mount rack stays to the ends of bar sticking out, then two more nuts on each side, job done
– or use another spare seatcalmp (with the lip filed off) on your seatpost and a longer bolt.
– or use p-clips, either on the frame seatstays or a bit one round the seatpost
– or use a single (or both if there’s room) rack stay mounted to the existing seactlamp using longer bolt
– or use a single rack stay and bolt to the brake/seat stay bridge if your frame has one
– or a long shot, try a LBS, Salsa aren’t the only people who make those clamp adaptors.