24mm: 24mm fully closed -- 32mm fully open. 19mm: 19mm fully closed -- 26mm fully open. 22mm: 22mm fully closed -- 30mm fully open. 30mm: 30mm fully closed -- 38mm fully open. Bike Allen Key Seat Bolt.
Replacement Standard Bike Saddle Seat Post Nut & Bolt - 1 3/8" - 1 1/2" - 1 3/4"
ROCKBROS Wide Bike Saddle Seat Comfortable Leather Bicycle Saddle Seat
2pcs Bike Seat Clamp, 22mm MTB Seat Clamp Black Mount Bracket Bicycle Bike Saddle Seat Bolt Seatpost Clamp
Bike Saddle Seat Post Clamp Bolt Quick Release QR Saddle Seatpost Stem MTB Road
OriGlam Black Bicycle Bike Saddle Seat Bolt Seatpost Post Clamp Mount Bracket 22.2mm, Seat Adapter Clamp, Metal Clamping Ring Standard Rail Saddles for Mountain and Road Bikes
