Here is a original dmr double bolt seat clamp for a trailstar or sidekick!
Retro Hope Seat Clamp Anodised Red 34.9mm Retro Vintage MTB
DMR Grab Seat Clamp 28.6, 30.0, 31.8mm for MTB Retro Cycling
DMR Grab CNC Seat Clamp In Size 30.2mm BLUE
IMPALAPRO Bike Quick Release Seatpost Clamp - Seat Clamp - Seat Clamp Bike - Seat Post Clamp- Seat Post Clamp - Bicycle Seat Clamp - Seat Lock Clamp 7075CNC (Red, 34.9 mm)
IMPALAPRO Bike Quick Release Seatpost Clamp - Seat Clamp - Seat Clamp - Seat Post Clamp- Seat Post Clamp - Bicycle Seat Clamp - Seat Lock Clamp 7075CNC (Blue, 34.9 mm)
