This rear hub fits nearly all 150cc Hammerhead karts except the Hammerhead Junior (UM125IIR) and Hammerhead GL150.
The bolt pattern is 4 x 137mm. The hub measures approximately 5 2/5″ inches center to center (across).
– Stud spacing measuring diagonally 136mm or 5.36″
– Center splines are 25mm
IKARTPARTS
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