Cannondale Hollowgram Si BB30 Crank Arm 172.5mm Right - KP305/172R Clothing Accessories - Flat Guard tires have

- Flat Guard tires have Urban Armor Casing

Manufacturer Part Number: WCRADDICT L

- 3-pin head secures slotted chainring nuts for wrenching

Manufacturer Part Number: BHS2-10-5

Cannondale Hollowgram Si BB30 Crank Arm 172.5mm Right - KP305/172R Clothing Accessories - Flat Guard tires haveOriginal Cannondale Hollowgram Si single crank arm. Cannondale's BB30 innovation many years ago continues today to create some of the lightest, stiffest, strongest, and most versatile cranksets on the market. The Hollowgram Si comes on a variety of mountain and road bikes in the $3000 to $7000 price range. This is a significant upgrade from the Cannondale Si solid forged arm in weight savings and stiffness. Interchangeable fit and configuration with