Shimano Tourney RD-TY300-SGS Rear Derailleur CheckoutTitle=Industry Nine iRiX Zero Stack Cup Headset Solution The design provides a robust

The design provides a robust barrier between the rim and the tire offering unprecedented protection against punctures sidewall slashes and pinch flats

type 6 and 7 bleed blocks

And it has innovative features that make it easy to work on like compatibility with full cable routing and a built in cable tension adjuster

but if you're toeing the start line

Shimano Tourney RD-TY300-SGS Rear Derailleur CheckoutTitle=Industry Nine iRiX Zero Stack Cup Headset Solution The design provides a robustThe Shimano Tourney TY300 SGS rear derailleur features SIS Rear Indexing and Double Servo technologies to provide smooth action with perfect tracking for the most accurate SIS shifting. SIS Rear Index Shifting System provides smooth action Double Servo enables the guide pulley to track the cogs closely while moving front to back optimizing each shift Designed to keep the rear derailleur guide pulley at an optimum distance from each sprocket for