Shimano EW-JC130SS Di2 E-Tube Wire Y-Split 350/50/450mm MFPN=00.6618.198.000 Made from 304 Stainless Steel

Made from 304 Stainless Steel Ring Position/Type Single Tooth Count 42 Drivetrain Speeds Single Speed 3/32" Chainring BCD 130 Color Silver Defined Color Silver Teeth 42T Width 130Mm

}Industry Nine Hydra 2 Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Orange 32H

Works with Sirius DB

Model Box Three Size 140mm Mount 6-Bolt Thickness - Weight 78g Color Silver

RSH - Improved puncture protection under the tread maintaining overall performance

Shimano EW-JC130SS Di2 E-Tube Wire Y-Split 350/50/450mm MFPN=00.6618.198.000 Made from 304 Stainless SteelShimano E Tube wires and connectorsFrame grommets for E tube internal wiring compatible frames are sold separately see Shimano Frame Grommet Kit Electronic Shifter Extra Parts Ultegra Di2 wires utilize Shimano's e tube technology; e tube is a two prong system and is NOT cross compatible with Dura Ace 7970 Di2 wiring All e tube wires may be used for internal or external applications