![HPI Roto-Start Back Plate: Savage X (F4.1), 21, 25 HPI Roto-Start Back Plate: Savage X (F4.1), 21, 25](https://cdn11.bigcommerce.com/s-q0oivn9r3h/images/stencil/500x500/products/66/67/HPI87117-2__64792.1562580776.jpg?c=2)
HPI87117
HPI Roto-Start Back Plate: Savage X (F4.1), 21, 25
Fits HPI Savage X, 21, 25, and Ofna Force 21 & 25 engines
This is the Back Plate Unit for the HPI F4.1 (which is the 4.1 engine on the Savage X), the Nitro Star BB Series & Force 21...
$1299