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365
Black
Red
Blue
Gold
List
91-9002K 91-9002R 91-9002B 91-9002G $99.00
Black
Red
Blue
Gold
List
91-9003K 91-9003R 91-9003B 91-9003G $54.99
BOX EXTREMUM BB
The Extremum RacePrep™ is first external BB designed for BMX racing and features non-contact, titanium-coated SUS
bearings, modified low-friction seals and lighter weight lube. The titanium coating results in a low friction coefficient,
increased corrosion resistance and smoother rolling bearings. The result is a BB with less drag and a level of bearing
protection more in line with the needs of BMX racers.
EX-1 BB
EX-1 External bottom brackets feature cold-forged and CNC-
machined alloy cups, dual-labyrinth bearing covers and precision
sealed bearings. They are the perfect match to Promax CF-2 and
HF-2 cranks and ultimate upgrade to the budget BBs sold with
most crank sets.
Tommy Zula
BOTTOM BRACKETS
RACEWEAR
GLOVES
FOOTWEAR
HELMETS
HELMETACC.
EYEWEAR
PROTECTIVE
WEAR
CASUALWEAR
GEARBAGS
HYDRATION
ACCESSORIES
FRAMES&BIKES
FORKS
HEADSETS
STEMS
HANDLEBARS
GRIPS
SHIFTING
BRAKING
LIGHTING
TIRES&TUBES
WHEELS&RIMS
HUBS/CHAINS&
PARTS
CHAINRINGS&
PARTS
PEDALS
CRANKSETS
BOTTOM
BRACKETS
SEATS/POSTS&
CLAMPS
PLATES&
NUMBERS
SECURITY
CHEMICALS
TOOLS
PROMOTIONAL
INDEX
Phone: 1-800-999-3388 / 1-877-359-2946