Backbone adds 30 Lbs draw weight and up to 40 fps!
By simply removing the stock back spacer from your bow and installing Backbone you gain power and speed.
In our testing
(using a ballistics chronograph)
ACE Martial Arts Pistol crossbow :
stock @ 168 fps went up to 202 fps
- Prophecy 80 Lb Pistol crossbow :
stock @ 184 fps went up to 221 fps
- PSE Viper SS Pistol crossbow :
stock @ 177 went up to 211 fps
- Bolt Shredder Pistol crossbow :
stock @ 173 went up to 206 fps
Backbone is also compatible with:
Cobra RX Adder, Cobra R9, Viking Razorback,
and Cheap Shot 130.
No data available for these models.
We do not recommend installing JaXce Backbone in the Horizone RedBack. This bow becomes EXTREMELY hard to cock with Backbone installed.