Industry Nine iRiX IS42/IS52 Headset : IS42/28.6 | IS52/40 Integrated Complete Red Offset-51 thick thin tooth design for

thick thin tooth design for Shimano 12sp mountain chain engagement

but not to factory levels

0 Labeled Size 700x37C Tire Width 37C e-Bike approved No Bead Folding Tire Type Tubeless Ready Tire Width Range 30 - 38 Primary Color Grey Tire Diameter/ISO 700C/622

and user-serviceable

tight fitting

Industry Nine iRiX IS42/IS52 Headset : IS42/28.6 | IS52/40 Integrated Complete Red Offset-51 thick thin tooth design forTECH SPECS Bearing Grade Stainless Steel Headset Type Integrated S. H. I. S. IS42 28. 6 IS52 40 Primary Color Red SHIS Lower IS52 40 Headset Position Complete Material Aluminum Steerer Tube 1 1 8 1. 5 Upper Cup 42mm Lower Cup 52mm Crown Race Diameter 40mm SHIS Upper IS42 28. 6