The CC-4 is a drop-in style gauge that measures bicycle chain wear. The laser cut CC-4 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of knowing when chain replacement is necessary. A worn chain will cause poor shifting as well as accelerate drivetrain wear. The tool works on any 5 to 12-speed derailleur chain and is designed to accurately indicate when a chain reaches .5% and .75% wear, the points at which most chain manufacturers suggest replacement.
When Will My Order Ship? Due to COVID-19 and continued supply chain disruptions it may take 3-7 business days before your order ships and you receive a shipment confirmation. Most shipments leave our warehouse within 48 hours of placing an order. Some take longer if shipping from a vendors warehouse. Once your order has shipped a tracking number will be e-mailed to you with a delivery estimate. This info can also be accessed from your Account Page. Free Shipping Promotion We're happy to offer FREE shipping on orders over $75 within the continental United States. This excludes some oversized items. For example bikes, wheels, trainers, indoor bikes, car racks, etc. see your shopping cart for more details. In Store Pick Up If you would like to pick up your order at one of our stores just select the "Free Store Pickup" shipping option when ordering. Please note that our online store and our retail stores maintain separate inventories. Purchases made online with an in-store pickup option will be shipped to the store from our online warehouse. One of our team members will contact you when your order is ready for pick up. This process usually takes 1-4 days.