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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 |
Discover the 100 mm long aluminum handle with 20 mm Finesse Touch Knobs from Gomexus made of TPE, durable and eco-friendly fishing gear for demanding anglers
The handle is made of high-quality aluminum alloy material, which ensures a longer lifespan and high sensitivity, allowing you to better feel the action of the bait.
The Finesse Touch Knobs are made from special TPE material and a reinforced nylon skeleton, which does not fade and has a long lifespan. Additionally, TPE is an eco-friendly material without plasticizers.


Kastking
For a detailed search, please also check the compatibility list for handles with 8x5 mm bore.