For someone who runs a 22.99 you definitely should try the Maxfly 2’s and the adidas. I run a 21.13 in the Max flys and they’ve always been the fastest in my opinion.
PB was 21.69 at 30-years old in the original Nike Ja Flys (similar plate to what Bolt had with Puma). Ran 22.56 last year at 40-years old in the Nike Ja Fly 4 shown here. I break the MaxFlys out now and then during training, but sprints are always slightly slower and curves feel weird. They do have a nice "bouncy" feeling, but I just haven't experienced that translating for me. Maybe it's user error!
I actually prefer less "forward stiffness" a.k.a forefoot flexibility for the final portion of the ground contact because our forefeet naturally bend forward while running, contributing to the last part of the horizontal propulsion in each stride.
I am completely with you. I love the basic spikes. They let the foot be a foot. My 55m PB actually came in the Rival S last year at age 39 (along with hitting some 11.0x 100m races)
@@tracktuary Nice to hear success stories of using old school spikes. I copped and tried Superfly Elite 2 out and it was decent (minus the blister), yet I still think I’d perform better with Ja Flies 4. It could be because my body was still adapting to the Superflies tho
Hi , nice content. I've got a question. Is there any fittings difference between elite 2 and ja fly 4? I've been trying elite 2 and they are very narrow for my. But didn't try the ja fly. Greetings from Poland
I do feel like the elite 2 takes a bit more work to get your foot into due to the heel cup. They are all very similar once on to me. I actually made a mistake in this video when I said the MaxFly was the only size 9.0. I also bought the elite 2 in a 9.0 because the 9.5 Ja Fly felt like it had a little too much room in front of the toe.
@@tracktuary Speaking of the heel cup, do you know if increased heel support can lead to increased pressure on the achilles heel tendon? I ask this because in the past, I wore Nike running shoes with increased heel support which put tremendous strain on my achilles tendons so much to the point where I no longer use them. If this is the case with the Superfly Elite 2, I may opt for the Ja Fly.
@@grimreality451 That cup in the Superfly Elite 2 definitely puts a little pressure on the Achilles. I'm not particularly a fan of the upper on that spike. I much prefer the old Nike Ja Fly (aka "Powercat").
@@tracktuary I'm sure glad I stumbled across your channel. I did a quick google search and found this: One of the bullet points on the shoe details description for the NIKE® ZOOM JA FLY 3 TRACK SPIKE: "* Heel counter sits lower on the foot: Provides extra relief for the Achilles tendon"
I always used max for sprinting both races and trainings but then I heard using them every day puts too much demand on my feet and shins so I decided to buy a softer spike plate and I am thinking about ja fly 4 or rival s. I am a 110m hurdler and I often run 100m and 200m to check my raw speed improvements. I recently bought max 2s for 100m in races, but I still need a spike for sprint training sessions in general, for all sprint disciplines.
Hey Pete I have a pair of JaFly 3s and JaFly 4s. I run the 100, 200, and 400. Do you think I should use the 4s for each race or would the 3s be better for some because it's stiffer and has more spikes.
@@KyleFennema I don’t think one is inherently better than the other. Use what you’re most comfortable in for these races. Both models are still really similar and traditional.
Does anyone know if the honeycomb design technology on the soles of the Superfly Elite 2 and Ja Fly 4 is employed not just for weight reduction but for flexibility under the plate, similar to how honeycomb designs are used on Nike running/jogging shoes such as the pre-2018 Free RN Distance and the Free 4.0 Flyknit to give it barefoot feel and performance?
I can't answer this for you, but after some races this indoor season, I find the bottom of the Ja Fly 4 to feel slippery on Mondo. The Superfly Elite 2 has much sharper ankles on the plastic plate whereas the Ja has a little smoother. This past weekend, I actually just wore the Rival S for an indoor 200m. Given that it was my first time on a banked track, I didn't want to worry about having the right traction.
@@tracktuary Good you brought that up as I'll be competing in an outdoor event on a banked track where I'm not exactly sure what type of surface we'll be running on. All I know is it's an all-weather track so, I'm guessing it's some sort of rubber composite, so I'm hoping it's not mondo or I'll have to choose a different type of track spikes or run in trainers.
Will definitely buy a Ja Fly 4 for my future sprinting!
For someone who runs a 22.99 you definitely should try the Maxfly 2’s and the adidas. I run a 21.13 in the Max flys and they’ve always been the fastest in my opinion.
PB was 21.69 at 30-years old in the original Nike Ja Flys (similar plate to what Bolt had with Puma). Ran 22.56 last year at 40-years old in the Nike Ja Fly 4 shown here. I break the MaxFlys out now and then during training, but sprints are always slightly slower and curves feel weird. They do have a nice "bouncy" feeling, but I just haven't experienced that translating for me. Maybe it's user error!
I actually prefer less "forward stiffness" a.k.a forefoot flexibility for the final portion of the ground contact because our forefeet naturally bend forward while running, contributing to the last part of the horizontal propulsion in each stride.
I am completely with you. I love the basic spikes. They let the foot be a foot. My 55m PB actually came in the Rival S last year at age 39 (along with hitting some 11.0x 100m races)
@@tracktuary Nice to hear success stories of using old school spikes.
I copped and tried Superfly Elite 2 out and it was decent (minus the blister), yet I still think I’d perform better with Ja Flies 4. It could be because my body was still adapting to the Superflies tho
Hi , nice content. I've got a question. Is there any fittings difference between elite 2 and ja fly 4?
I've been trying elite 2 and they are very narrow for my. But didn't try the ja fly.
Greetings from Poland
I do feel like the elite 2 takes a bit more work to get your foot into due to the heel cup. They are all very similar once on to me. I actually made a mistake in this video when I said the MaxFly was the only size 9.0. I also bought the elite 2 in a 9.0 because the 9.5 Ja Fly felt like it had a little too much room in front of the toe.
@@tracktuary ok understand so it's even harder to compare directly.
Need to try by myself then :)). Thanks!
@@tracktuary Speaking of the heel cup, do you know if increased heel support can lead to increased pressure on the achilles heel tendon? I ask this because in the past, I wore Nike running shoes with increased heel support which put tremendous strain on my achilles tendons so much to the point where I no longer use them. If this is the case with the Superfly Elite 2, I may opt for the Ja Fly.
@@grimreality451 That cup in the Superfly Elite 2 definitely puts a little pressure on the Achilles. I'm not particularly a fan of the upper on that spike. I much prefer the old Nike Ja Fly (aka "Powercat").
@@tracktuary I'm sure glad I stumbled across your channel. I did a quick google search and found this:
One of the bullet points on the shoe details description for the NIKE® ZOOM JA FLY 3 TRACK SPIKE:
"* Heel counter sits lower on the foot: Provides extra relief for the Achilles tendon"
Wish i could lend those Ja fly spikes😢
I always used max for sprinting both races and trainings but then I heard using them every day puts too much demand on my feet and shins so I decided to buy a softer spike plate and I am thinking about ja fly 4 or rival s. I am a 110m hurdler and I often run 100m and 200m to check my raw speed improvements.
I recently bought max 2s for 100m in races, but I still need a spike for sprint training sessions in general, for all sprint disciplines.
I have a question, Do the maxfly's pop/break easily?
While many have stories that they do, mine have held up just fine. Zero pops in 7+ months.
Had mine for over a year before recently getting the new ones. No breaks or pops.
Hey Pete I have a pair of JaFly 3s and JaFly 4s. I run the 100, 200, and 400. Do you think I should use the 4s for each race or would the 3s be better for some because it's stiffer and has more spikes.
@@KyleFennema I don’t think one is inherently better than the other. Use what you’re most comfortable in for these races. Both models are still really similar and traditional.
@@tracktuaryThank you, Also keep up the good work I love your videos and stories. 👍
Are the jafly and superfly same sizing as the rival s?
I misspoke in this video. The Rival S is 9.5, the Ja Fly is 9.5, and the Superfly is 9.0.
Does anyone know if the honeycomb design technology on the soles of the Superfly Elite 2 and Ja Fly 4 is employed not just for weight reduction but for flexibility under the plate, similar to how honeycomb designs are used on Nike running/jogging shoes such as the pre-2018 Free RN Distance and the Free 4.0 Flyknit to give it barefoot feel and performance?
I can't answer this for you, but after some races this indoor season, I find the bottom of the Ja Fly 4 to feel slippery on Mondo. The Superfly Elite 2 has much sharper ankles on the plastic plate whereas the Ja has a little smoother. This past weekend, I actually just wore the Rival S for an indoor 200m. Given that it was my first time on a banked track, I didn't want to worry about having the right traction.
@@tracktuary Good you brought that up as I'll be competing in an outdoor event on a banked track where I'm not exactly sure what type of surface we'll be running on. All I know is it's an all-weather track so, I'm guessing it's some sort of rubber composite, so I'm hoping it's not mondo or I'll have to choose a different type of track spikes or run in trainers.
@@grimreality451 I personally don't like Mondo. I'm much more a fan of Beynon surfaces. The Ja Fly does just fine on those