Cons: The effectiveness of the attachment may depend on the shape of the towed rider's stem as it will need a slight protrusion to sit the loop under

Don’t do it drunk

The end result is a derailleur with faster

1 x DU bushing

If you have a roadie you won't need to use the road bike adaptor if you have this stand

absoluteBLACK 4 Bolt Narrow Wide Chainring - 96 BCD - Shimano XT 8000 - SLX 7000 - Oval - Black - 9-12 Speed - 32T Needs Images Cons: The effectiveness of theabsoluteBLACK is dedicated to producing the world's finest oval chainrings and were the first to crack the code to discover the correct shape and 'clocking' to make an oval chainring work. They learned how to maximize the part of the stroke where power is produced and minimize resistance where it isn't which has the effect of smoothing out the delivery of power throughout the pedal stroke and improving efficiency. Many other brands have followed suit