Industry Nine iRiX IS41/IS52 Headset : IS41/28.6 | IS52/40 Integrated Complete Black CheckoutTitle=Pirelli Cinturato Gravel RCX TLR Tire - 700 x 40 } Machined aluminum replacement derailleur

} Machined aluminum replacement derailleur hangers to fit a wide variety of frames

Fully CNC Aluminum ring

The woom 4 introduces children aged six years to the world of gear-shifting

Filing is required for 32t fitment onto some older Quarq Power meters

Temperature range -15°C to +10°C

Industry Nine iRiX IS41/IS52 Headset : IS41/28.6 | IS52/40 Integrated Complete Black CheckoutTitle=Pirelli Cinturato Gravel RCX TLR Tire - 700 x 40 } Machined aluminum replacement derailleurTECH SPECS Crown Race Diameter 40mm Material Aluminum SHIS Lower IS52 40 Headset Type Integrated Lower Cup 52mm Headset Position Complete Steerer Tube 1 1 8 1. 5 SHIS Upper IS41 28. 6 Bearing Grade Stainless Steel Primary Color Black S. H. I. S. IS41 28. 6 IS52 40 Upper Cup 41mm