StarTrac Strength, Lock N Load Differences, Gen1, Gen 2, and Gen3

StarTrac has produced different versions of the angled Lock N Load cartridges found on the weight stacks of their Impact and Instinct strength machines. There are 3 different generations of the angled cartridges.

Important Note: The Gen3 cartridge has a longer pin preventing it being backwards compatible if replacing a Gen1 or Gen 2 cartridge. 

You must replace each version or generation of the Lock N Load cartridge with the same generation on the machine. Knowing the date of manufacture of your machine can help.

• Gen1 Lock N Load cartridges are on STS Impact models made between April 2007 and April 2008.
• Gen 2 Lock N Load cartridges are on USA Impact models made between April 2008 and July 2008.
• Gen3 Lock N Load cartridges are on USA Impact models and All Instinct models made August 2008 to current.

Click the link below to read more and see the differences in the LNL cartridges.