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Your baitcaster needs either 7×4 mm or 8×5 mm – depending on the model.
Search below for your reel or use "Search in page" to find it directly.
Your reel is not on the compatibility list? No worries – just quickly measure the shaft yourself. The crucial factor is the shape/size of the crankshaft (shaft) onto which the handle is mounted. The common sizes are 7×4 mm and 8×5 mm.

Tip: Image shows the difference between 7×4 mm and 8×5 mm.
Quick reminder: You measure the shaft, not the nut – and you need two values at the end: width × height = 7×4 mm or 8×5 mm.
Choosing the right baitcaster crank (handle) affects torque, speed, comfort, and control. Length, handle material, and knob size directly influence the fishing feel – especially during longer sessions or with lures that have a lot of resistance. This guide helps you understand the differences and find a suitable combination.
The length of the crank determines the torque: the longer the crank, the more leverage.
Suitable for:
Features:
Suitable for:
Features:
Suitable for:
Features:
Ideal for weight-optimized or finesse-oriented setups.
Aluminum is the versatile standard in baitcaster tuning.
Knob size is usually given by the diameter at the thickest point.
Before deciding on length or knobs, check the axle bore of your reel:
If your reel is not listed, you can measure the axle bore yourself with a caliper.
| Use | Recommendation |
|---|---|
| Finesse | 70–85 mm + 18–22 mm Knobs + Carbon |
| Allround | 90–100 mm + 22–27 mm Knobs + Aluminum |
| Big Baits | 105–120 mm + large Knobs |
| Save weight | Carbon Handle |
| Durability | Aluminum Handle + larger Knobs |
As a passionate angler, you know that the right equipment is crucial. The Gomexus Carbon Handle for baitcasting reels, equipped with two 27mm TPE knobs, is exactly the accessory that takes your fishing gear to the next level.

This powerful handle is made from high-quality TORAY carbon fiber material, recognized as premium in the carbon fiber industry. It offers a strength 7-9 times greater than steel, while weighing only a quarter as much. This makes it a lightweight yet extremely durable partner that takes your fishing experience to a new level.
The knobs are made of TPE material, which provides a comfortable and secure grip even with wet hands. They feel soft and are generally significantly superior to the original crank knobs, the ideal upgrade for your fishing reel.

Assembly is simple and takes less than 2 minutes. Everything you need is included in the package, including the durable and powerful Japanese NMB bearings, which are sensitive enough to detect the movement of the bait underwater.
Assembly Video:
Compatibility of the Gomexus Carbon Handle
The Gomexus Carbon Handle is compatible with a variety of fishing reel models and brands. Here is a list of compatible models; if your fishing reel is not listed, you can disassemble your original handle and measure the bore.

Shimano 8x5mm
Daiwa 8x5mm
Abu Garcia 8x5mm
Lew's, Quantum 8x5mm
Penn 8x5mm
Okuma 8x5mm
