JUST CANCELLED MY COBRA REFLEX BAG, thanks to your video i just happened to watch it before my order shipped out.. IM GOING THE DIY ROUTE. THANKS FOR SAVING ME $300...TY SUBSCRIBED
Lessons learned from someone who built this using the reedy kewlus' spring. Make the MDF base board version instead of the umbrella base. It is sturdier and it helps when twisting the spring into the steel pipe as well as the pvc pipe. It will give you a firm base to really twist it into place. If you do not use something to hold the pipe you will struggle 100%. Also making the "speed bag" version is great and it's really fun and all but it makes the action really really slow. Also since you are using pool noodles, you feel less of an impact when you hit the bag because it kind of absorbs the punches. I recommend that you use the setup from the 1st video (just pool noodle and one small ball ring). This makes the action really fast and comparable to the bag that Ryan Garcia uses. The punches are really tactile and really satisfying because you have less foam in between the pvc pipe and the punches (MAKE SURE YOU WEAR GLOVES!!!). The spring is really amazing and I recommend it. Also if you have any worries about the parts coming off or the spring coming off don't. I've been bombing on this thing for days and it takes a whoopin.
Awesome feedback bro!!! Thank you 😃. By the way I’m working on a Pro version spring to be able to use with a speed ball. It will also be compatible with the 3/4 inch pipe so can simply upgrade in future when it comes out. 👌
I don't understand anything you say, but it is very useful, even if you don't have the opportunity to go to a gym, it is not an impediment to practice sports greetings from Mexico
I love your channel reedy you are a genious! I would like you to make one that could have a metal sleeve that could go into a concrete floor. That way you don't have to have a base u could just slide the pole in to the floor, and then you could pull it back out. I think this would be a great idea for my mma gyms cause some times they need more floor space to put matts back down when we are doing just grappling and when there doing boxing we just fold the matts back up and put them in the closet and slide the cobra bag back in , am i making any sence?
Thank you 😃. Yes brother that makes sense and I think I can figure out a solution. Could you please contact me through my blog www.fighterdiy.com so we can work out the details?
@@Kewlus thats right on the money i would love to see you do something like that on your channel. If you have a patio or a garage floor you could show us how to do it that would be awesome i have 6 cobra bags right now but the bases are so big that even when you slide them out of the way against the wall there still in the way when there is alot of guys grappling. If mma gyms could have a system like that we could actually just use a clip or something to mount them Above on the wall out of the way
I'd love to try to make something like that, but I don't have the tool to be able to drill out a recess in my garage floor. I'll ask a friend builder to see if he can come up with something. Also, you can contact me by email through my About page here: ruclips.net/user/ReedyKewlusabout or using the Get In Touch form on my blog, www.fighterdiy.com
One other thing is I would use a one inch flange incase you want to make a height-adjustable mast (ruclips.net/video/WFohHwZNZ9M/видео.html). You can always use a 1 to 3/4 inch reducing bush if you just want to use a 3/4 inch pipe. One inch flange will also be stronger for the long term.
I will be replacing the original Kewlus Spring (KS9) with a KS12. It will have slightly less power than the pro, but will also be able to adjust the speed. I will bring it out in February
Hey, this is awesom. But do you have a Kewlus spring that goes around a 1 and 1/2 inch pipe? I already made the base while making it for the power twister cobra bag. I Want to upgrade to the spring model but don't want to make a new base. Or any ideas how to fit the Kewlus spring around the 1 and 1/2 inch pipe?
The Kewlus PRO Spring (KSR12PRO) is now available to pre-order here: kewlus.com/products/kewlus-spring-ksr12pro There will also be a KS12 (not PRO) that will replace the KS9, which will be similar to the PRO but a lower gage and not painted. That's coming in Feb.
The PVC Pipes is so difficult to find. They all send it in 4 meters, and I’m not sure whether 3/4 inches is 20 mm or 26 mm. Some shops sells 3/4 an writes 20mm while other says 4/3 = 26 mm. So confused over here. From Denmark.
Hey, I have a question. I visited your page, and it's says"Free shipping". But, because i am in another country (Colombia) it will continue as free shipping? Because I think the shipping to Colombia cost to much to put "free shipping".
Thank you for your support and commitment 😃. It’s definitely on the cards. I’m currently working on a number of complete commercial prototypes with a number of manufacturers. I can’t say how soon, but most likely I will have a complete product within a few weeks. I want to make sure it’s functionally superior to any product out there before I launch it. Stay tuned! 👌
Hello! Can I add a spring to my Everlast reflex bag? It is much slower, you can only hit it once at a time. Also, it doesn’t have the part where you screw in the spring...
I’ve done the 30kg one here: ruclips.net/video/87K7FKzlZ2c/видео.html 40kg would be similar but could have a heavier top section. Compression springs are much better for this application (better oscillation) unlike the power twister spring which is an extension spring and tends to snap too quickly on the virtual position - that’s why I made a custom compression spring. I don’t think I’ll be going back to using power twisters again for this.
Currently about 2-3 weeks. I’m in the process of setting up fulfilment by Amazon in US and Canada and send the first batch over there. Those will be available in a few weeks. I’ll keep everyone posted 👌
Great video you should sell everything together for cosumumers to order online I'm sure it would at a reasonable price a win win for you n consumers with at reliable product
I only did the 30kg. ruclips.net/video/87K7FKzlZ2c/видео.html Now I’m working on a “Pro” version Kewlus spring that will leave all other springs for dead. That’s coming soon so stay tuned brother 🤙
Y'all saying thanks for saving me $300 but actually the Fierce Reflex Bag that Ryan Garcia uses & sells is $500 usd so he done saved u way more than just 300!!!
hi Bro come back to you again tell the truth different people need different spring rates beginners advanced and pro! which speed is faster than yours or from Amazon Power30 kg also I find bol in a toy shop the same material like pool noodle this means you can easily put in a bar in and make a ball on top!
Yes I agree. You could go to a 40kg spring if you need faster. The only issue with the power twister spring is it is a closed coiled spring (extension). The best type of spring for a boxing cobra is an open coiled spring (compression). I couldn’t find anything suitable so I made one. Foam ball for the bag should work!!
@@Kewlus GARSIA USE COBRA BAG! SPRING CLOSED EXTENSION LOOKS LIKE POVER BAR OR I am the wrong I am worried about 4o kg will not move =30 kg or yours spring what faster - your opinion mater you PRO now! THANKS!
Garcia spring is open coil (compression) which is the best type for boxing cobra. My spring is designed for a lightweight top, like a foam ball. 40kg is a stiffer spring than mine. I will soon have a much bigger spring for a pro setup. Stay tuned brother 🤙
You deserve way more recognition and views brother.the bag moves like the professional 300$ cobra bag
Thank you 😀
Went from an engineering genius to a salesman! Love it!
Just trying to give people what they want
@@Kewlus you do a great job!
Thank you 😃
JUST CANCELLED MY COBRA REFLEX BAG, thanks to your video i just happened to watch it before my order shipped out.. IM GOING THE DIY ROUTE. THANKS FOR SAVING ME $300...TY SUBSCRIBED
Going to watch this as soon as it comes online, and can’t wait for the kewlus spring to arrive!
I ve just found my old dusty spring in the bassement. It is gonna get a new life!
👍😀😂
i ordered a spring! i made a pretty cool reflex bag with a fiberglass pole too thanks for all the inspiration
You’re most welcome and thank you for ordering!!
How can I order a sling?
You can order it with free shipping here: kewlus.com/products/kewlus-spring-v1
i got my spring in the mail today thanks Reedy!
you best! save me money! i do this and spar bar! THANKS BRO
Lessons learned from someone who built this using the reedy kewlus' spring. Make the MDF base board version instead of the umbrella base. It is sturdier and it helps when twisting the spring into the steel pipe as well as the pvc pipe. It will give you a firm base to really twist it into place. If you do not use something to hold the pipe you will struggle 100%. Also making the "speed bag" version is great and it's really fun and all but it makes the action really really slow. Also since you are using pool noodles, you feel less of an impact when you hit the bag because it kind of absorbs the punches. I recommend that you use the setup from the 1st video (just pool noodle and one small ball ring). This makes the action really fast and comparable to the bag that Ryan Garcia uses. The punches are really tactile and really satisfying because you have less foam in between the pvc pipe and the punches (MAKE SURE YOU WEAR GLOVES!!!). The spring is really amazing and I recommend it. Also if you have any worries about the parts coming off or the spring coming off don't. I've been bombing on this thing for days and it takes a whoopin.
Awesome feedback bro!!! Thank you 😃. By the way I’m working on a Pro version spring to be able to use with a speed ball. It will also be compatible with the 3/4 inch pipe so can simply upgrade in future when it comes out. 👌
@@Kewlus well sign me up! haha I hope the price will stay the same or wont increase much. Great work
Mine arrives on Tuesday can’t wait!
@Christopher Misajon yes, it arrived a day early.
Great, thank you for generously sharing.
im boutta order this spring Great videos man
Just ordered a spring, really looking forward to building this!
Thank you 😃
I don't understand anything you say, but it is very useful, even if you don't have the opportunity to go to a gym, it is not an impediment to practice sports
greetings from Mexico
Thanks for saving us 300+ about to get started on the project but when will you restock the spring. Great video and you just got a new subscriber
Thank you. You can now pre-order the Kewlus PRO Spring on Kewlus.com. The KS9 will be superseded by a KS12 which is coming in late Feb
excited to build one of these. who knew pool noodles were so useful
You should make a step by step tutorial on how you built it similar to other tutorial videos on youtube, you'd get a lot of views
Can I do such to my everlasting reflex bag by applying the spring?
Not sure brother but you could try.
Cant wait
I love your channel reedy you are a genious! I would like you to make one that could have a metal sleeve that could go into a concrete floor. That way you don't have to have a base u could just slide the pole in to the floor, and then you could pull it back out. I think this would be a great idea for my mma gyms cause some times they need more floor space to put matts back down when we are doing just grappling and when there doing boxing we just fold the matts back up and put them in the closet and slide the cobra bag back in , am i making any sence?
Thank you 😃. Yes brother that makes sense and I think I can figure out a solution. Could you please contact me through my blog www.fighterdiy.com so we can work out the details?
Just a quick thought- what about bolting a 3/4 inch flange into a suitable recess in the floor and covering the top to make it flush with the floor?
@@Kewlus thats right on the money i would love to see you do something like that on your channel. If you have a patio or a garage floor you could show us how to do it that would be awesome i have 6 cobra bags right now but the bases are so big that even when you slide them out of the way against the wall there still in the way when there is alot of guys grappling. If mma gyms could have a system like that we could actually just use a clip or something to mount them Above on the wall out of the way
I'd love to try to make something like that, but I don't have the tool to be able to drill out a recess in my garage floor. I'll ask a friend builder to see if he can come up with something. Also, you can contact me by email through my About page here: ruclips.net/user/ReedyKewlusabout or using the Get In Touch form on my blog, www.fighterdiy.com
One other thing is I would use a one inch flange incase you want to make a height-adjustable mast (ruclips.net/video/WFohHwZNZ9M/видео.html). You can always use a 1 to 3/4 inch reducing bush if you just want to use a 3/4 inch pipe. One inch flange will also be stronger for the long term.
When are you getting more normal springs Reedy ?? The pro version is a little to high in price. So I am looking for the one with no paint.
I will be replacing the original Kewlus Spring (KS9) with a KS12. It will have slightly less power than the pro, but will also be able to adjust the speed. I will bring it out in February
Sos un crack .. grasias por compartir tus ideas... entreno muy bien
Great video! Where did u get the spring? :)
kewlus.com/products/kewlus-spring-ksr12pro
great product. whats the size of the spring Length and width so I can prepare my metal cutting before I purchase.. cheers..
All the details are here: www.fighterdiy.com/2020/10/how-to-make-boxing-cobra-punching-bag.html
Hey man how can you make it that steady with just a couple jugs of water? I have a 90 pound chunk of concrete and it still isn’t as steady as that?
I use 4 x 10 litres water containers. That’s also around 90 pounds and seems to work ok. The best I found is using the suction cups though
You can put weights also instead of those white water container.
Yep 👍
Hey, this is awesom. But do you have a Kewlus spring that goes around a 1 and 1/2 inch pipe? I already made the base while making it for the power twister cobra bag.
I Want to upgrade to the spring model but don't want to make a new base. Or any ideas how to fit the Kewlus spring around the 1 and 1/2 inch pipe?
Easy! Just get a reducing bush from 1 1/2 to 3/4. Or you can also use a reducing coupling. 👌
@@Kewlus , thanks mate! I just bought the spring!
Will the spring be back in stock soon?
The Kewlus PRO Spring (KSR12PRO) is now available to pre-order here: kewlus.com/products/kewlus-spring-ksr12pro There will also be a KS12 (not PRO) that will replace the KS9, which will be similar to the PRO but a lower gage and not painted. That's coming in Feb.
I Love it man... sooo much thanks
The PVC Pipes is so difficult to find. They all send it in 4 meters, and I’m not sure whether 3/4 inches is 20 mm or 26 mm. Some shops sells 3/4 an writes 20mm while other says 4/3 = 26 mm. So confused over here. From Denmark.
Ask for outside diameter of 26mm one. They are often referred to as 20mm pipe but just make sure the outer diameter is 26mm
@@Kewlus is 25 mm Ok?
That should work 👍
Would the k spring perform better than the power twister spring?
Definitely
Hey, I have a question. I visited your page, and it's says"Free shipping". But, because i am in another country (Colombia) it will continue as free shipping? Because I think the shipping to Colombia cost to much to put "free shipping".
Yes, free shipping worldwide. I don't want anyone to miss out or be penalised for being in any particular country.
@@Kewlus Holy sh*t, this is a great offer, thanks, I will see the other components firts, because I don't know too much about this.
Ok let us know if you are able to get the other components in your country 👍
Are you looking into selling complete DIY cobra bag in the future id buy one
Thank you for your support and commitment 😃. It’s definitely on the cards. I’m currently working on a number of complete commercial prototypes with a number of manufacturers. I can’t say how soon, but most likely I will have a complete product within a few weeks. I want to make sure it’s functionally superior to any product out there before I launch it. Stay tuned! 👌
I would too haha but how much would you sell them for?
Not sure depends on cost of manufacturing. Hopefully not much
Reedy Kewlus what size of the Pvc pipe did you get?
3/4 inch (1.05 inch outer diameter)
I may have missed it. Did you say which diameter galvanized pipe and pvc?
3/4 inch
Any suggestions of what to look for in a spring for us Europeans?
You can order the Kewlus spring in Europe too!! www.fighterdiy.com/p/kewlus-spring.htm
@@Kewlus hi! But we use different thickness of pipes I think, as we work with they metric system, no?
In Australia we also have the metric system but the pipes are the same. The 3/4 inch pipe is the same as the 20mm pipe 👌
Very nice❤️
It sold out ☹️
When it will be available?
In about two weeks 👌
Hello! Can I add a spring to my Everlast reflex bag? It is much slower, you can only hit it once at a time. Also, it doesn’t have the part where you screw in the spring...
Don’t think it would work
Can you do a 40kg power twister?
I’ve done the 30kg one here: ruclips.net/video/87K7FKzlZ2c/видео.html 40kg would be similar but could have a heavier top section. Compression springs are much better for this application (better oscillation) unlike the power twister spring which is an extension spring and tends to snap too quickly on the virtual position - that’s why I made a custom compression spring. I don’t think I’ll be going back to using power twisters again for this.
So can I use a compression spring from sa motorcycle rear suspension spring?
That might be a bit too stiff but you could try
Hey are you shipping to México?
Yes
how long approximately is the delivery time of the spring from your website?
Where to?
@@Kewlus Winnipeg, Manitoba, Canada
Currently about 2-3 weeks. I’m in the process of setting up fulfilment by Amazon in US and Canada and send the first batch over there. Those will be available in a few weeks. I’ll keep everyone posted 👌
@@Kewlus prefect thank you!
Thank you. Ok I’ll do that 👌
Were can I go to look to buy the spring ?
www.fighterdiy.com/p/kewlus-spring.html
What is the length of your spring? Like the height of it
9 inches
can you ship Spring to IRELAND thanks
Yes
where did u buy these gloves?
I actually don’t remember! 😂 I’ll have to review some gloves - any suggestions?
How does this compare to the fiberglass pole?
I’ll have to do some comparative tests and post a video
what spring did you use
The Kewlus KS9 spring: www.fighterdiy.com/p/kewlus-spring.html
How is the fiberglass version coming along? Will it be available soon?
I’m about to receive what I hope will be the final prototype from the manufacturer. Should have an update soon 👌
Hey buddy who's your favourite aussie fighter
Mine is Judd Reid
I’d have to say Nathan “Carnage” as I trained with him back in the day. He’s got 11 world titles
@@Kewlus I have taken Judd's name cause I practice Kyokushin myself not a good fighter though but I love practicing
U aussies are good at sports be it cricket, martial arts, football, ...........
How can I order the spring?
You can order it here with free shipping: kewlus.com/products/kewlus-spring-v1
Can u restock please
New stock should hit the US warehouse in a few days. I'll notify you if you subscribe on Kewlus.com (footer)
@@Kewlus thank u
Henry Garcia has entered the chat lol.
Great video you should sell everything together for cosumumers to order online I'm sure it would at a reasonable price a win win for you n consumers with at reliable product
Thank you. Yes I will be!!!
Where do you get the spring?
kewlus.com/products/kewlus-spring-ksr12pro
🙌🏾🙌🏾🙌🏾
Can I buy a Fierce flex bag instead of the whole set and put it on the pole ?
I really can’t say if it would work without testing
What if I don’t have a ball
You can make one using pool noodles
@@Kewlus thanks!
what size is the spring?
^the width of the spring
All the details are here: kewlus.com/blogs/diy/how-to-make-pro-cobra-punching-bag
cant find a video where you did 40 kg
I only did the 30kg. ruclips.net/video/87K7FKzlZ2c/видео.html Now I’m working on a “Pro” version Kewlus spring that will leave all other springs for dead. That’s coming soon so stay tuned brother 🤙
Hey Reedy I’m just waiting for a response on email for order let’s talk soon brother
Nice build was going to say the first 40 seconds of you talking you sound like Steve irwin lol.
Springs all sold out when are we back in stock?
Yep will be back in stock very soon. Subscribe in the footer of kewlus.com to be notified 👌
out of stock on springs my man !
New stock coming later this month. Stay tuned brother 👌
Y'all saying thanks for saving me $300 but actually the Fierce Reflex Bag that Ryan Garcia uses & sells is $500 usd so he done saved u way more than just 300!!!
hi Bro come back to you again
tell the truth different people need different spring rates beginners advanced and pro! which speed is faster than yours or from Amazon Power30 kg also I find bol in a toy shop the same material like pool noodle this means you can easily put in a bar in and make a ball on top!
Yes I agree. You could go to a 40kg spring if you need faster. The only issue with the power twister spring is it is a closed coiled spring (extension). The best type of spring for a boxing cobra is an open coiled spring (compression). I couldn’t find anything suitable so I made one. Foam ball for the bag should work!!
@@Kewlus GARSIA USE COBRA BAG! SPRING CLOSED EXTENSION LOOKS LIKE POVER BAR OR I am the wrong I am worried about 4o kg will not move =30 kg or yours spring what faster - your opinion mater you PRO now! THANKS!
Garcia spring is open coil (compression) which is the best type for boxing cobra. My spring is designed for a lightweight top, like a foam ball. 40kg is a stiffer spring than mine. I will soon have a much bigger spring for a pro setup. Stay tuned brother 🤙
Most man are under 6ft belive it or not