Ergon GP4

The GP4 features a wide, ergonomic palm platform that increases the surface area of your contact point. This design distributes pressure more evenly across your palm, which helps prevent the nerve compression that typically causes numbness and tingling during longer rides.

No, the Ergon GP4 grips are not recommended for use with carbon fiber handlebars. The lock-on mechanism requires a specific clamping force that can damage carbon structures, so they are intended for use with aluminum or steel bars only.

The integrated bar-end provides an alternative hand position, which is particularly useful for changing your posture during long climbs or extended touring. By shifting your grip, you can relieve tension in your wrists and shoulders while gaining better leverage for pedaling.

Yes, you will need a standard hex key (Allen wrench) to tighten the lock-on clamp. Once installed, the clamp ensures the grips stay firmly in place without twisting or slipping, even under heavy pressure.

The GP4 grips are designed to fit standard bicycle handlebars with a diameter of 22.2 mm, which is the industry standard for almost all fitness, hybrid, and city bikes. As long as your bars are not carbon fiber, they should be compatible.