Boundary IS Headset

Sale price$18.90 USD
SKU: IS5B-1-1
Color: Black


Spec (S.H.I.S): IS41/28.6 | 5.55mm Stack

Spec (S.H.I.S)

Material Alloy
Bearing Type Cartridge
Material Black M6 alloy screw
In The Box
Upper Headset 1 Screw
1 Top cap
1 Split ring
1 Height cap
1 Headset bearing
1 Headset cup
2 Bearing spacers
Lower Headset 1 Headset bearing
1 Crown race
Item S.H.I.S Frame Diameter Fork Steerer Top Stack Weight
IS5-Upper IS41/28.6 41mm 28.6(1-1/8 inch) 5.55mm 33.3g
IS15-Upper IS41/28.6 41mm 28.6(1-1/8 inch ) 15mm 39.3g
IS99-Upper IS42/28.6 41.8mm 28.6(1-1/8 inch ) 4mm 40.2g
IS100-Upper IS42/28.6 41.8mm 28.6(1-1/8 inch ) 12mm 53.3g
IS101-Upper IS42/28.6 41.8mm 28.6(1-1/8 inch ) 7mm 42g
IS5-Lower IS42/30 41mm 30(1-1/8 inch) - 22.8g
IS99-Lower IS42/33 46.9mm 33(1-1/4 inch) - 35.2g
IS101-Lower IS42/40 51.8mm 39.8(1.5 inch) - 38.8g
-Upper Headset and Lower Headset sold separately.
-Expander and star nut excluded and sold individually.