Pick N Mix - J-Bottom-Full Integrated-IS52/40 - Black Hope Universal - 6 Bolt - Standard Disc 2.3mm Big Betty works perfectly on

Big Betty works perfectly on the rear wheel when combined with Schwalbe's much-loved Magic Mary

plus a high level of puncture protection

The area is still deemed sacred by many as it was once at the heart of the Incan empire and is a relatively short distance from the famous Incan ruins at Machu Picchu

delivers up to 300% more airflow

Pick N Mix - J-Bottom-Full Integrated-IS52/40 - Black Hope Universal - 6 Bolt - Standard Disc 2.3mm Big Betty works perfectly onHeadsets can be a minefield. Don't panic! With our pick'n'mix range you can choose the top and bottom cups separately , covering you for almost every headset combination out there.