Omni QuickTrack Adapter attaches to a standard rear rack or Racktime* system platform allowing the use of popular Topeak TrunkBags and rear baskets. Adjustable mounting brackets fit rear rack widths from 90mm to 120mm with 10mm to 12mm rack tube dimensions. - Attachments: Rear rack deck - Material: Engineering grade polymer - Max Load: Limited to rack max loading rating - Size: 32 x 9.4 x 6.1cm - Weight: 230g / 8.11oz Compatibility - Fits rear rack without top plate and spring clip, - Rear rack width 90mm - 120mm, - Rack tubes, 10mm to 12mm diameter - Compatible with Topeak MTX / RX TrunkBags and MTX rear baskets *Racktime is a registered trademark of tubus carrier systems GmbH.