Chain Guide 3 Ring

The sole purpose of the narrow wide chainring is chain retention.
Chain guide 3 ring. Bolt circle diameter bcd is the diameter of an imaginary circle running through the center of the chainring mounting holes. Ditching a triple ring setup and investing in a staggered chain ring is a great way to breathe new life into an aging drivetrain. What does the narrow wide tooth pattern do. As you ride over rugged terrain your chain moves around quite a lot.
It is always defined in millimeters. Choose a chain guide. The narrow wide tooth pattern keeps. Bike chain guide mtb bike protector road bicycle mountain cycle chain guide tensioner with hollowed design for single disc sprocket front dial smooth driving.
Clutch type rear derailleurs like this xtr shadow plus help keep the chain from coming off the bottom of the chain ring bikeradar. Upanbike mountain bike chainring guard 104 bcd aluminum alloy chain ring protector cover for 32 34t 36 38t 40 42t chainring sprockets. The narrow wide chainring now mates seamlessly with the chain almost locking the chain to the ring without much increase in drag. Put simply the teeth are correspondingly thick then thin resulting in a profile which grips to the chain and aids chain retention.