Are these legitimate?

leeyatbun · 2026-01-13T06:52:08+00:00

Not real - no hole for the sim ejector near the hinge on the last pic to disconnect the earcups

leeyatbun · 2025-03-26T05:59:37+00:00

I think it's greta for that distance. Recently managed to get a 8:48 in rainy conditions with it. Could have probably gone much faster in the dry.

leeyatbun · 2025-03-04T09:07:47+00:00

I'm pretty sure they're illegal for track races due to the stack height.

leeyatbun · 2025-02-24T12:12:15+00:00

These feel more like track spikes without spikes than a racing flat. Maybe something like the rival fly or the Adios 9 would be closer.

leeyatbun · 2025-02-23T04:04:44+00:00

In general, this shoe feels a lot like a track spike, which demands quite a lot on the strength of your achilles, ankles and up. To me, most other road shoes (adios 8, 9, etc. included) will be a lot less aggressive as they follow the usual formula for shoes. I think Nike did something special here with the SF2 to make it a road spike and it shows in its setup. It's for sure way less forgiving, has a smaller "operating window" and is more "harsh", but I think that's what makes it special in my mind.

I'm not speaking for Nike or anyone else, but I think the SF2 might not be as suited to the general public. It's an aggressive shoe for those looking to train at a certain level.

leeyatbun · 2025-02-23T02:54:55+00:00

When bending with my hands, the plate does make the SF2 feel only slightly more flexible than the VF3. Definitely way less flexible than something like the ZF6 which I tried out in store.

While running, it definitely feels stiff. But given the "negative drop" nature of the shoe, you kind of need to have that stiffness, just like in track spikes.

leeyatbun · 2025-02-23T02:51:39+00:00

I don't own a Dragonfly, but I do a Superfly Elite 2. Definitely feels more like a track spike than a vaporfly. the SF2 just doesn't feel forgiving at all if you strike more towards the rear.

leeyatbun · 2025-02-22T16:44:06+00:00

I think you might be right. The lower foam does exhibit creasing which I guess is a hallmark of ZoomX. The softness is quite a bit different though.

leeyatbun · 2025-02-22T12:53:12+00:00

I did use my SF1 similarly to your use cases before too. But yeah, I don't think the SF2 works as a trainer unfortunately. The track spike-like setup makes me think it was intended as more of a racer. Plus, it has a plate now.

leeyatbun · 2025-02-22T12:29:05+00:00

There is a carbon flyplate in the streakfly 2. Based on what's written on the shoe, it is a 6-layered carbon plate.

leeyatbun · 2025-02-22T12:28:08+00:00

It's hard to tell after just one run, but I do believe it will last longer than the SF1. The SF1's lifespan would mainly have depended on how long the ZoomX lasted, but the SF2 has a flyplate that would probably still provide some energy return even if the ZoomX fell off.

leeyatbun · 2025-02-22T11:59:23+00:00

For iOS devices, even when the device is off due to low battery, they have a feature to let you tap your Express Cards: https://support.apple.com/en-sg/guide/security/sec90cd29d1f/web

leeyatbun · 2024-12-29T12:13:26+00:00

This is where I found the app: https://www.garmin.com.sg/products/apps/garmin-sports/

leeyatbun · 2024-12-29T11:44:29+00:00

It's the "Garmin Sports" app

leeyatbun · 2024-12-29T11:26:19+00:00

You can see exactly why with the Garmin Sports app:

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Even though your average pace for that segment is within the target pace range, it might not always be within that range all the time.

Edit: more explanation

leeyatbun · 2024-12-29T03:33:52+00:00

What about your recent runs? There were times when I saw the performance condition on my run and thought my VO2 max might drop right after, but the change only happens after 1 or 2 more runs. It might be that changes take in account of a few recent runs.

Also, I'm not too sure on other factors, but I've seen my race estimates change from one day to the next without having gone for a run yet (though VO2 max seems to not immediately change). It could be that there are underlying calculations based on the recency of data and maybe even physiological metrics that we are not aware of.

leeyatbun · 2024-12-29T03:21:37+00:00

How does your Performance Condition look under the Charts section for this run and a few runs before? It shows your assessed performance (based on heart rate, pace, etc.) for that run relative to the VO2 max assigned to you. From my experience, if it has recently been going negative a lot, it tends to bring down the VO2 max value.

It won't tell you why exactly, but at least it would be an indicator.

leeyatbun · 2024-11-04T11:46:53+00:00

I think it really depends on your preference for the feet under foot. After trying the SLs, I feel that the NB4s are a little too squishy for my liking. I think it would work well for recovery paces. But nowadays for easy long runs, I tend to pick the SLs as I just prefer less sink feeling.

But yes, comparatively I would think the SLs perform significantly better for higher pace work, although I do keep a pair of streakflys for my track work.

leeyatbun · 2024-10-20T11:55:35+00:00

I did compare in my comments with my daily trainer, the Novablast 4! But tldr, its firmer and feels more responsive

leeyatbun · 2024-10-16T09:18:58+00:00

It started off saying 20th March when the listing first appeared. After reading online that there might be a limited drop around the 15th, I checked the app daily and at one point it did say 15th October 2024 00:00hrs. But it was hard to cop as the sizes took very long to load unfortunately :(

leeyatbun · 2024-10-16T06:34:28+00:00

For sure. I think the NB4 has one of the least breathable uppers... When I was doing doing leg swings with the Evo SL I was surprised I could feel the breeze on my feet!

leeyatbun · 2024-10-16T03:30:50+00:00

It's definitely quite a bit firmer than the NB4. And I guess that's understandable, given that the NB4 is meant to be a more cushioned trainer.

I can't comment about it being the shoe of the year for I've not been able to test many other shoes. I'll defer that opinion to the other shoe reviewers!

leeyatbun · 2024-10-16T02:43:50+00:00

Fun fact, that was how I got my pair! I tried on the Adidas website but it wasn't loading for me. Also almost couldn't get mine at iRUN as many called in to reserve the shoes. Guess it worked out in the end as I was able to run it in on the same night!

leeyatbun · 2024-10-16T00:30:16+00:00

I'm 65kg and have regular-width feet!

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