In my words
1/24 Hyrax F/R 1.0 TRS Mounted 7mm Black Impulse is the Rock Crawler rubber I reach for when the track is small-scale trails with just enough squirm to walk over obstacles.
The set is 1.0" in TRS and the wheels take a 7mm hex, fitted front and rear, 4 pieces to a bag, mounted and glued, so it goes on the car the evening it arrives. A carcass this size wants the right insert far more than it wants a different compound.
Stock on small-batch sets moves quickly, so the listing is the honest source for what is left.
What Pro-Line says about it
- Mini version of the extremely successful Hyrax Tires
- Designed for Maximum Performance on Any Terrain
- Highly Detailed Sidewall for Scale Looks
- Mini Version of the Extremely Popular Impulse Wheels
- True Bead-Loc Wheel Design held Together by 3 Screws
Questions I get about this set
Do I need to glue these?
These arrive mounted and glued, so there is nothing to do but bolt them on. Pro-Line tires want thin CA worked around the bead in quarters, not one bead of glue chased around the rim in a single pass.
Which insert goes in?
Inserts are not included with this listing, so budget for a set. A closed-cell insert holds shape under load; an open-cell one lets the carcass work. Heavy cars and high-bite tracks want the firmer option.










