Park Tool MWR-15 Metric Wrench Ratcheting 15mm ModelNumber=H2668 ring type single (anti-chain drop)

ring type single (anti-chain drop) mount 3-bolt DM 3mm offset teeth 30t oval/round oval color black

model EA90 diameter 27

}Shimano Dura-Ace 16t 1/8" Track Cog Black

and 9-12 speed chain tool

Super stiff mud optimized narrow-wide chainring is a perfect choice for cyclocross and gravel riding

Park Tool MWR-15 Metric Wrench Ratcheting 15mm ModelNumber=H2668 ring type single (anti-chain drop)Park Tool MWR 15 Metric Wrench Ratcheting 15mm. MWR Metric Ratchet Wrenches offer world famous Park Tool quality. Strong comfortable and beautiful! Wrenches feature open ends and 12 point box ends with 72 tooth two way ratcheting mechanisms Forged from chrome vanadium steel chrome plated meticulously polished then center dipped in Park Tool blue vinyl for a positive grip TECH SPECS Tip Size 15mm