Where's the cotter pin?

[GIXERHP]

Every Gen 2 i have seen have the lock nuts on them

 

[MonkeyButtRides]

Just noticed my gen 3 doesn't have a cotter pin on the rear axle? They seem like a pretty good idea to me, and I'm wondering where they went. They can't have been sacrificed just for weight, or cost, could they?

I almost want to drill my own holes but I've never done that.

That's one of the things I like about Suzuki. Their axle nuts are self locking! Kawasaki loves their cotter pins and I hate it. I had a KXF450 and I purchased a Suzuki RMZ axle nut and swapped it for my KXF450 axle nut. One of my favorite upgrades for that bike. I've never had an issue with Suzuki's self locking axle nut. That said, my 97 GSXR SRAD has a cotter pin. Not sure when Suzuki starting using the self locking axle nuts.

 

[WuzzaCBXRider]

My 06 Busa has a cotter pin. Some older and newer do and don’t?

 

[Dai.]

Both my K8’s never had one, never felt concerned enough to worry about it.

The KTM had a retainer pin that randomly felt apart whilst cleaning, needless to say one was never added back on.

 

[dadofthree]

Just noticed my gen 3 doesn't have a cotter pin on the rear axle? They seem like a pretty good idea to me, and I'm wondering where they went. They can't have been sacrificed just for weight, or cost, could they?

I almost want to drill my own holes but I've never done that.

Lock nut

 

[sixpack577]

No cotter pin on the B-King either,

My B-King had the axle nut like the picture @Bumblebee posted of his Busa.

 

[sixpack577]

That's one of the things I like about Suzuki. Their axle nuts are self locking! Kawasaki loves their cotter pins and I hate it. I had a KXF450 and I purchased a Suzuki RMZ axle nut and swapped it for my KXF450 axle nut. One of my favorite upgrades for that bike. I've never had an issue with Suzuki's self locking axle nut. That said, my 97 GSXR SRAD has a cotter pin. Not sure when Suzuki starting using the self locking axle nuts.

Around 2008
The Gsxr"s have the castle nut through 08, and I cannot remember if the gen5 '09-'14 do as well or not.
The gen6 and current gen7 do not have a castle nut

 

[Bumblebee]

My B-King had the axle nut like the picture @Bumblebee posted of his Busa.

I imagine Suzuki saw this as a less expensive system......less hole drilling and one less part (cotter pin).

Makes sense to have changed it.

 

[MonkeyButtRides]

I imagine Suzuki saw this as a less expensive system......less hole drilling and one less part (cotter pin).

Makes sense to have changed it.

I removed/installed wheels a lot more frequently on my motocross bikes so I loved not having a cotter pin. Cotter pins are nice but also a pain in the @ss plus they tend to be only good for 1 or 2 swaps then you need a new one.

 

[Bumblebee]

I removed/installed wheels a lot more frequently on my motocross bikes so I loved not having a cotter pin. Cotter pins are nice but also a pain in the @ss plus they tend to be only good for 1 or 2 swaps then you need a new one.

For a while people were using those push clips in place of the a cotter pin....

I had them in pretty much all my bikes after a while....