axle choice

[ohv_]

So I screwed up.
I have a 40mm 1040mm keyed axle.

I need to move to a 50mm simply because I bought new hardware for what I thought was a 50mm axle since that's what Topkart runs and from my research was the axle of these karts... I have new bearings, 50mm sprocket housing, and few other items

How does one pick an axle? I am noticing newer axles are not keyed but pegged?

Topkart has- https://shop.topkartusa.net/collections/axles-hubs/products/50mm-top-kart-axles?variant=330178297 however 1030mm
cometkartsales has- https://cometkartsales.com/50mm-Righetti-Ridolphi-Axle.html with peg/keys all four.

My keys currently sit at 5mm tall, 8mm wide.

11 new items by Jeremy

photos.app.goo.gl

 

[Rat]

This is why most measure even when they're sure of what they are looking at BEFORE they buy anything.

 

[ohv_]

Exactly.

 

[anderkart]

Since you bought all those genuine Topkick brand axle componets: I'd suggest you contact Topkick with all of the part #'s of your axle componets; and then have them verify which one of their 50mm axles (and which set of keys) you should buy; so you'll be 100% sure everything will be compatible.

PS: they'll ask you what level of axle-stiffness you want, I'd go with the Medium.