You don't necessarily have to use the long axle kit unless there isn't sufficient fletching clearance with what you presently use. However, should you need the long axle kit it should be available from Martin, Part number is BP-102.
Originally Posted by rmercado
The string length for a 2004 SlayR with B cams is: 52/34" string and 39 1/4" cables
FYI this info is available at Martin's website. Just click on Tech Info and then scroll down to your desired year of manufacture and pick cam option of your choice.
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