i recommend a phil wood. it's so simple to use as the only 2 moving parts are the screws. i would steer clear of the bushnell unit. they are known for creaking and have to be stripped and covered in coppaslip the expanding wedges and allen screws are prone to seizing.
i have been using a phil wood on my ss mtb for the last 3 years, take it out and regrease once every year when i fit a new chain, never slipped or creaked.
Independent fabrication use phil ebb's if there was something better available at whatever cost i expect they would use it.
i recommend a phil wood. it's so simple to use as the only 2 moving parts are the screws. i would steer clear of the bushnell unit. they are known for creaking and have to be stripped and covered in coppaslip the expanding wedges and allen screws are prone to seizing.
i have been using a phil wood on my ss mtb for the last 3 years, take it out and regrease once every year when i fit a new chain, never slipped or creaked.
Independent fabrication use phil ebb's if there was something better available at whatever cost i expect they would use it.