THIS 4130 MACHINED HEAD TUBE IS MADE TO EXCEPT 44MM HEADSET PRESS IN CUP BEARINGS. ZS44 AND EC44 HEADSET COMBOS TO WORK WITH 1-1/8 OR TAPERED 1-1/8 TO 1-1/2 STEER TUBES

180MM LENGTH +.5/-0

50MM OD ON EACH END FOR 6MM AND TAPERS DOWN TO 48MM OVER 6MM TAPER

TUBE CENTER SECTION OD IS 48MM AND HAVE INTERNAL CENTER RELIEF

TUBE ID EACH END IS 43.5MM FOR 15MM AND NEEDS TO BE POST WELD/BRAZE REAMED TO SIZE FOR 44MM HEAD SET.

CLICK HERE FOR PDF DRAWING SPECS

ESTIMATE WEIGHT 384 GRAMS

SKU TBE-HT-50-44-180