Thule Pack n Pedal Rail Extender Kit. Increases rider heel clearance by moving your panniers further back. The extenders can be used on either a front- or rear-mounted Thule Tour Rack (sold separately). Easily attaches to Thule Pack ’n Pedal Tour Rack rails in order to slide Thule Pack ’n Pedal panniers further back on the bike. Quantity: 1 Unit. Brand: Thule. MPN: TH100044. Authorised Thule UK Stockist. eBay Seller Since 2010.