SPECIALIZED, STUMP JUMPER, HARD-TAIL Mountain Bike:
Grubee: 48cc 2 stroke installed and tuned correctly.
Running fine.
Installed BOOST BOTTLE...and HOLY CRAP!...Increased HP and "PULL" for sure!
I was hittin' about 28 mph no prob. WITH BOG.
NOW, I'm hittin' 32 plus from start/idle to WOT with NO BOG and up to 30MPH.
Haven't even spent time on IDLE/AIR screw yet...
BOOST works. PERIOD.
~Chris B.

Grubee: 48cc 2 stroke installed and tuned correctly.
Running fine.
Installed BOOST BOTTLE...and HOLY CRAP!...Increased HP and "PULL" for sure!
I was hittin' about 28 mph no prob. WITH BOG.
NOW, I'm hittin' 32 plus from start/idle to WOT with NO BOG and up to 30MPH.
Haven't even spent time on IDLE/AIR screw yet...
BOOST works. PERIOD.
~Chris B.

