Cycle Frame Adapter 982 - Fits Non-Standard Bike Frames to Cycle Carriers Thule bike frame adapter for easiest possible fitting of bikes with non-standard frames to Thule Cycle Carriers (e.g. ladies’ bikes, BMX bikes, downhill bikes). Mounts between saddle-post and steering. Suitable for sensitive carbon frames that need extra protection. Specifications Minimum Adapter Length: 565mm. Maximum Adapter Length: 665mm.