These are the K2 r100 Frames. They run around $99 US. They’re machined out of extruded aluminum which makes them extremely solid. They’re UFS and are designed to fit four 100mm wheels.

The metal frame spacers can be rotated 6 directions to create your perfect setup. I ended up banana rockering them, which means the middle wheels are down and the outside wheels are up. This should make them easier to turn than having all 4 wheels flat.

I set them up with some Undercover Mushroom Blading wheels and some Rollerblade SG9 bearings on my Seba CJ skates. I had a bit of trouble getting them set up until I realized half the frame spacers were different. 

The axles are designed to allow for a single tool to tighten, which means the frame spacers need to be installed a specific way. This is great design after I realized what was happening, but wasn’t super intuitive.

I skated them in my neighborhood to see how they feel.

Over the next few months I skated them on different terrain. I got pretty confident with some of the flatland tricks and was able to parallel slide better than ever.

I love skating the K2 r100. They’re similar to the feeling I get with my 3 by 110 triskates but with a better wheelbase for landing gaps and doing turns.

Are the K2 r100 the must have frame? Most likely not.

The r100 are long. Really long. Even with the rocker making turning easier, they’re too long for me to comfortably skate without clipping my wheels. I sometimes feel like I’m wearing clown shoes, there’s just too much wheel for me.

They’re UFS, which means mostly aggressive boots will work. You’ll probably want a pretty stiff boot though like the Seba SX. I’ve seen people skate them on the K2 Unnatural and they seem to like them, but most aggressive boots probably aren’t stiff enough.

There’s always going to be the comparison to the Wizard frame. Unfortunately I haven’t skated the wizards enough to really have an option on them, but look forward to getting a pair for a future review.

Even with the length and big wheel feeling, I love skating these frames. There’s a floating feeling you get with 4 by 100 wheels that’s hard to describe. If you have a solid UFS boot, you might want to pick up a set.

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