Lets Talk HONDA GROM Big Bore Kits - Everything and Anything

[@cubul32]

This is a business, but the fact that you take time to educate, makes it gold. Thanks.

[@HardRacingPerformanc]

Thank you very much. We greatly appreciate the comment.

[@heihachimishima8578]

Man if you guys could do a video on installing the forged crank and rod I think that would be super helpful and sell more of them!

[@HardRacingPerformanc]

One of our great customers made one. kzbin.info/www/bejne/qp-Zf2Z5hJuSqrs

[@molonlabe9602]

@@HardRacingPerformanc I guess the most basic of question is: How many CC'S can the stock head facilitate with maybe just adding a bigger injector?

[@HardRacingPerformanc]

@@molonlabe9602 Unfortunately, if you don't use a proper fuel controller, and lower the A/F Ratio ......., ALL BBK will overheat and burn up no matter the size

[@wo0ter]

Also could you guys do a video about optional/recommended accessories to go with BBK's? Like fuel controllers, oil coolers, clutch spring plates, stiffer springs, etc.? What would be recommended to go with the Kitaco NEO?

[@HardRacingPerformanc]

Wo0ter, that's actually one of the most popular questions we get. So much so that we actually do all the work for the customer, and list out all the recommended and required add-on Accessories with the BBK when you add it to your shopping cart. That way the customer doesn't have to remember, or research or figure out what else is needed. It's all listed out there for you, and all you have to do is choose the ones you want to add. Super easy. Click this link here to see an example: store.hardracing.com/cart.php?target=product&product_id=31963

[@redlinethin]

Awesome video! Very helpful. Thanks! Would you be able to do 5 speed installation video in the future?

[@HardRacingPerformanc]

We'd like to get one of those done for sure.

[@dmxracr9202]

THANK YOU for this video!!! You are an amazing leader and role model to young, same age, and older people to be informed with your knowledge and experience. This video goes a long way in the sense of saving people money with not know what they should get when they want to upgrade. I hope you get a lot of business from this and your other videos. I WILL be using your service if and when I get my Grom... Again, thank you...

[@jeremypierce1979]

You guys should make a glass Window for that side so we can see if it's worn out or getting worse that would be really awesome and I'm sure there's alot of people out there that would buy one for there grom's.. thanks for the video keep up the great work..JMP.

[@HardRacingPerformanc]

Agreed. That would be a great product to have.

[@jeremypierce1979]

HardRacing any luck on a glass Window head yet??

[@MiniMotozinc.]

You answered my question at the end well kind of. Can you clarify for my if I can run the 181cc takegawa bbk with the forged crank shaft and forged connecting rods? I’m replacing mines and wanna do the swap, just wanna make sure they all fit together without interference

[@nightshydow]

I have 2018 grom I installed the koso 170 big bore kit 4valve head with the kitaco forged crankshaft the morin oil cooler with the koso throttle body with the bigger feul injector the aracer mini X with the Af2 auto tune but I just blow up my motor my motor blow up around 3-12-23 today is 4-8-23 right know I am putting my motor back together the only thing was damaged was the big hole the piston rod knocked in the bottom of crankcase the piston and the cylinder and 2vavle on the exhaust side one of the rocker arms and the crankshaft the rod head was twisted I had to take it to a Machine shop to heat the head up to bend it back straight so like I said Im rebuilding the motor know but I'm going with a 181cc cylinder using the 170cc 4valve head so my question is can I get another bore to give me more horsepower.

[@Vitalii_Safronov]

Thanks for the awesome stuff. Do you recommend Kitaco Neo for new Honda Monkey 125 as well?

[@HardRacingPerformanc]

Yes for sure.

[@itemps]

How do these last for stunting?

[@jorgeortega1709]

Is the oil cooler necessary for the 143cc big bore kit on a Honda Monkey? I live in Florida with hot temps almost all year round.

[@JamesMartin-rn4li]

Never hurts to have more cooling

[@AridersLifeYT]

4:36 - yep can confirm, Ariderslife on youtube chewed through 3 186cc grom kits. either from faulty valves that dropped into the head, or blown gaskets. 181 seems about perfect.

[@HardRacingPerformanc]

exactly.

[@stronkworks]

What about the 170 4v, is that one still more maintenance than the neo?

[@ianwalker4803]

Great vid , answered my questions , thank you .

[@HardRacingPerformanc]

Very welcome. Glad we could help.

[@paulm7753]

now that we are in 2022, Has there been any better or other changes you would recommend from this video. any new that would be better power than the 181cc kit2020 GROM

[@RiptideMX5]

Hi! Will the new Honda Grom engine fit into older gens frame?🤔

[@wilsonportalatin1980]

¡Saludos! It's does kits fit a honda trail 125? I love my trail but all I Want its a bit of more power.

[@demonrobertketchie5409]

You should offer fully built ready to go engines to purchase with a core. Or have customers ship their engines and you build them and ship them back. Great video, Thank you for all you do.

[@HardRacingPerformanc]

Unfortunately, not enough demand. Most people just want to install a BBK and call it a day.

[@molonlabe9602]

I can buy a 180 BB kit that includes a cam at a reasonable price. Is it ok to add this kit using the stock 2 valve head? Is the stock intake and injector big enough to support/justify installing the 180BB kit? Thank you.

[@HardRacingPerformanc]

We would need more information. please email our sales dept. and they will be more then happy to assist.

[@karlalton3170]

Hi there on a honda wave 100 or 110 cc can you get a 170 or 180 two valve big bore kit carb version to fit with a forged crank ?? And on this engine does it require crankcase machining to accept the barrel ?? Regards Karl

[@purpleguy6973]

what's up, have any idea if the 181 bbk would fit a gy6a 125?? I have a clone i wanted to make into a meme

[@nezabytes]

Me too. I have a Qiye 125cc.

[@badassbikerst]

I already have a finbro superhead, if I purchase the takegawa 181cc BBK kit for it, can I later upgrade to a 4v head and piston but use the same 181cc cylinder?

[@HardRacingPerformanc]

Yes, you can get the 4v Head + 4v Piston + 4v Camshaft

[@cuchsluch]

Im almost ready to install the 143 w/crank. What parts should i replace while im already in there anyway ? Timing chain? Valve springs? And the such

[@HardRacingPerformanc]

That's a very popular question. So much so that we actually did all the work and research for you. When you choose a BBK and click "ADD TO CART" it will put up the entire list of parts we recommend getting. They are all there for you see and pick and choose what you want to add. Super easy.

[@synthartist69]

Will this work for the Honda Monkey?

[@pow_hnd]

Is there a significant decrease in MPG with the Kitaco Neo big bore kit & cam? I love my MPG and it's part of the reason I have a grom and I use my Grom as a daily commuter May-October.

[@HardRacingPerformanc]

When we did our BBK it only dropped from 100 mpg to about 82-85 mpg. That's what most customers seem to be getting as well.

[@pow_hnd]

@@HardRacingPerformanc Thanks for the info!

[@MadsWorld34]

i'm looking for the 143 kit with cam, head and injector and programmer if i need it for a honda trail 125 / ct125 i was told the monkey and grom is the same kit. but i dont know. do you and can you let me know

[@aaronlee0203]

Great review. For Kitaco Neo, what is the top speed?

[@HardRacingPerformanc]

Most customers are getting 80-85 mph.

[@1089chrisable]

I'm having a fuel problem after koso 181 install and upgrades. Only getting 3/4 throttle before is sputters out. Dino shop said it's not getting enough fuel

[@clubdredd1337]

I noticed just about everything is out of stock.. any update on restock?

[@saleshardracing1561]

Not sure what you mean.. We have nearly 99% of all our Grom Parts IN STOCK. Can you be more specific what you are showing as "Out of stock "

[@wo0ter]

Awesome video thanks! Are you guys planning on doing a Black Friday sale this year? =D

[@HardRacingPerformanc]

we usually do

[@xxcoltsneckxx]

@@HardRacingPerformanc Where can I find info about your black friday sale? I don't see it anywhere on your site or social media

[@Jh-rr9sp]

All Sead and done do I need to Dino Tune have Power Commander

[@TillURide420]

do you recommend the finbro upgrade head with the takegawa 143 or 181 BBK? does it help with the top end on the 181 or is it a waste of time?

[@danamoore6501]

Excellent vid,usefully informative👍

[@elpaisorro]

Do you know if the transmission will hold up with the extra power? I dont hear many people talk about upgrading it, only the clutch plates.

[@HardRacingPerformanc]

We've had no issues from any of our Groms with BBK running for the past 5 years. There are probably 4000 + Groms running around the world with BBK, and not seen anyone say the stock Trans. had issue.

[@elpaisorro]

@@HardRacingPerformanc awesome, thanks for the promt response.

[@HardRacingPerformanc]

Anytime. Always here to help.

[@mikefurlong8025]

Did I see that the Takegawa 181 cylinder comes with tappings to allow oil from an oil cooler to be circulated through the piston sleeve? Or did I misunderstand that? As far as I can see, none of the other kits include that feature, right?

[@blaster42008]

186 bbks are the most popular, but no videos on them... all my friends have them and they have monster pulls

[@geeeee8268]

I was looking at Grom mainly for compactness and possibility to maybe even keeping it in the apartment. But I found out that it's kind of heavy for the engine. Then I started to look into big bore kits. And quickly found out that it costs more per HP than slapping Hennesy supercharger onto an Escalade. Not to judge, as to each it's own, but I find it cheaper and much easier just to go and buy something with higher displacement. Like same Honda but CB300R. Liquid cooled 286cc thumper, so summer traffic not an issue, better brakes, much higher HP (already 4v) and it's only 50lb heavier fully loaded with all liquids.

[@HardRacingPerformanc]

If you have never ridden a Grom, it's hard to understand. You can get a Honda Grom NEW, for about $3000-$3300 The CB300R is $4600+$380 Destination = $5000 So not exactly the same ballpark.

[@geeeee8268]

@@HardRacingPerformanc You are right, I've never ridden a Grom. But I did ride many similar displacement motorcycles. Also, Grom has destination fee. And with CB300R you don't need $1K "displacement" kit, which will void the warranty among other things.

[@Rick_Sanchez_C137_]

Motorcycle warranties only last twelve months... if you add the mods in the first year, you’re a fool... but after that twelve months, absolutely ZERO reason not to modify it.

[@CharlieSolis]

Put that CB300R engine in a grom and you’ve got a FAST bike with a lot less weight and rotational mass.

[@Casey_E]

my grom is in my kitchen right now 😂

[@EinarLerschen]

"All out" -video sometime? Absolutely! Compelte overhaul tips and tricks and possibilities to go would be sweet. BTW: are you guys going to do monkey 125 videos in the future? Guess that would be the obvious way?

[@jvfjngd]

Can I put the 181cc big bore with the 4v head, and a +1 front sprocket also aftermarket cam, k and n air filter, with fmf exhaust and ecu, will that get me close to 90? I'm 13 and I want something fun when I'm in the military I know people gonna say(that's not a good idea) I want what I want don't change it.

[@taylorst.5131]

will the 181 bolt on to a xpro vader? it's one of the clones from what i can tell it's part for part the same as the gen 2 boom vaders.

[@n15-r8h]

Can you guys make a video on grom tuning like what to use or when you have to bring it to someone to tune it. Such and such and etc.

[@saleshardracing1561]

We actually have detailed videos on our channel for exactly that.

[@amdmamdm]

Installed kitaco 181 light bbk with type2 cam yesterday, runs fine with a perfect afr everywhere, but idle is a bit low nd afr is too rich at idle. Did reset ecu, run about 50 miles - no change. How can i adjust afr mechanicaly? Is there any air screw on a throttle body? All kitaco parts, i-map fuel controller

[@saleshardracing1561]

There's a metal Throttle stop screw on the TB, just turn that in a little to increase idel.

[@MrWadsyuk]

What top speed you can get? Interested to get Kitaco Light bore kit.

[@bigray998]

Do you guy's sell already built groms?

[@freeaolcd]

Thx, very informative vid

[@HardRacingPerformanc]

Very welcome. Glad you enjoyed it

[@DersABigBuck]

Do I need to replace the cam or crank with the neo?

[@HardRacingPerformanc]

You have to use the CAM that comes with the NEO. You don't "have to" use the Crank if you don't want to.

[@alejandromorenomonzon7648]

Dond puedo comprar piezas de motor de honda msx 125 año 2021...? Gracias

[@josephhayes2375]

How much would you charge to do a big bore kit on my grom

[@swunson]

awesome video man, thank you

[@tonydetrick7973]

I have the 64mm kit, after watching this I’m questioning putting it on. I don’t beat on my bike and all out drag it, would you recommend going with a smaller bore for this type of riding? Keeping the stock head for now and was going to put in the tb cam

[@armdrop101]

If will be fine

[@c0uchsl0uch]

Would you say a BBK slightly affects MPG or it will ruin MPG ❓

[@HondaRider190]

c0uchsl0uch my 181cc kit has chopped my mpg in half. One ride to town and back, and I’m empty lol

[@trollystomper9044]

lucky to get 60mile on a tank with my 181

[@HardRacingPerformanc]

Our 181cc BBK only dropped down to 85 mpg and we ride hard. But honestly the MPG Really has a lot to do with what fuel controller you are running.

[@rgthomson100]

I have a mt09 engine in my Grom, do you do a big bore kit for my engine as its only 125 bhp and i need to get past the 140 mph barrier i know my Grom will handle it

[@xorbe2]

You joke, but someone put a Panigale 1199 engine in a Grom. Sadly a fuel line popped off and it went up in flames.

[@CharlieSolis]

Gahhh I want to do this so bad…..

[@TomMarvoloRiddle01]

One question im sure somebody in this comment section has to know this. Di i have to opgread the "ecu" electronic parts of the bike when im gona install one of this kits?

[@Casey_E]

yes

[@stuart3568]

Any idea how I can get more power from a benelli tnt 125? Any kits availible?

[@HardRacingPerformanc]

Unfortunately, we do not have any listing for a Benelli TNT..... Sorry.

[@stuart3568]

Any idea what i can do to get more power, being a 4 value 125 it should be quicker than the grom. But I guess it's a new model and hard to find tuning parts

[@HardRacingPerformanc]

Full Exhaust and sprockets

[@stuart3568]

HardRacing I just got the werks decat. Full system will have to wait for now!

[@gojaimo]

I’m interested in a super 125 type of kit... how much power can we expect from that?

[@HardRacingPerformanc]

Usually about 1-3 hp more. If you also do the head. store.hardracing.com/cart.php?target=category&category_id=2552

[@adrenalinowner7992]

How good would a 181 and turbo kit be?

[@jediknight1294]

Having ridden turbocharged bikes small engines don't really shine without being HIGH rpm, the juice isn't worth the squeeze with anything smaller than a 600.

[@Labyrnthdom]

If you go with a stock case and a 181 with cam. Will it ultimately destroy the lower end of the crank case? I heard this and want to know if its true? Also will this 181 w/cam be a good upgrade for a stunt bike?

[@HardRacingPerformanc]

Laby 70, actually there are thousands of bikes running 170-181cc BBK with stock crank and probably a few million miles combined and no issues.

[@AridersLifeYT]

grom stuntbikes dont need bigbore kits. just a larger sprocket.

[@SuperLEEEDWARDS]

I understand this may be the wrong Chanel to ask but you know the saying if you don’t ask you won’t know. Now to question dew to ill health I can’t ride my immaculate wr250f 2016 with just 80 miles so was thinking for a long time to get a Grom now I’ve seen the cbr300 engine swaps but just stick out too much BUT what about the CBR125 engine you’d get I’d imagine a bit more power but my main reason is you’d GET 2 EXTRA GEARS to lower the revs so you could easily do the 70-80MPH I think everyone is aiming for especially for myself. If this is plausible I’d go out today buy a brand new Grom and would not mind spending an extra £1000-£1500 on it to make it both go faster plus have some trick bits, however if you think spending that money on the 4 speeder that’s what I’d do please answer to this question as I’m about to sell my WR250F and buy something I can handle (as in weight) because I’m very weak after recent operation many thanks SCOOBS UK.

[@mobilgin]

Hard racing, yeeerrrrr...let's do hard race. we will take a 50cc engine , tune it and the will race hard ,really hard...🤯

[@wallissonrenner4431]

Brazil 🇧🇷

[@mt1885]

Does the big bore kit require ECU flashing?

[@AridersLifeYT]

yes

[@mt1885]

@@AridersLifeYT - AWESOME thanks!

[@broken_bear9450]

If any one out there can help me with a honda cb125r 2019, I need a way to tune it, im running lean.

[@jediknight1294]

Look at a dynojet power commander

[@broken_bear9450]

@@jediknight1294 they do a force master 2 buddy, ill be getting one fitted soon hopefully and dyno tuned too. thanks for the reply buddy

[@armdrop101]

186 ftw

[@ZillaFullBoost]

Thank god I found this. I can’t wait to build my Grom. Y’all check it out on my channel!

[@wreckum56]

Go big or go home.

[@TomMarvoloRiddle01]

One question im sure somebody in this comment section has to know this. Di i have to opgread the "ecu" electronic parts of the bike when im gona install one of this kits?

[@bandy6366]

Yes

[@TomMarvoloRiddle01]

One question im sure somebody in this comment section has to know this. Di i have to opgread the "ecu" electronic parts of the bike when im gona install one of this kits?

[@HardRacingPerformanc]

Actually that's what this entire video is about,... all the things required to run a BBK. If you watch the video all your questions will be answered. ;-)

[@TomMarvoloRiddle01]

@@HardRacingPerformanc I watched the entire video and still dont know if i have to upgread the ecu or whats the benefits when you do it. Maybe i missed it but you could have answered with a simple yes or no thanks.

[@HardRacingPerformanc]

@@TomMarvoloRiddle01 Yes, 100% you have to have Proper A/F Ratio for a BBK to last. This requires an aftermarket fuel controller, ie aRacer Mini5, PCV WBC2 combo...etc. There are many other upgrades recommended as well. And we list them all on our website when you click a buy now on any of our BBK. It's all there for you so you don't have to research, or make a list, or waste a lot of time looking for them. They are all there listed out super easy.

[@TomMarvoloRiddle01]

@@HardRacingPerformanc Thanks!