2022 Honda Grom Race win running the DHM 149cc Big Bore Kit, S1 Cam and CJR ECU

I was asked to post up a bit more Grom action so here you go.. Not a huge field and I had to batter two much faster two strokes to get the win but, a wins a win right.. Love my Grom..
The DHM Big Bore kit has been faultless and without it I’d never have been as quick….

[@tonnynijholt7090]

Loved rewatching this one 😊

[@marcosrotllan]

As a 1 week grom user, 1st motorbike ever, this is so extreme to watch. Believe me. Absolutely epic, what a race... Disney is writing the script now

[@dwninetynine]

Lol, thanks, theyre such an awesome little bike, so much fun.. 🙂

[@chandlerrice6801]

It’s been 4 months big dawg how you liking the grom? I just got one a few months ago too lol

[@marcosrotllan]

@@chandlerrice6801 after 3kmiles Im still the happiest grom ever!!!!!!

[@r_mccarthy2260]

@@marcosrotllangood to hear bro stay safe

[@vekvek4319]

Excellent, watching the race was fantastic. All the best for the future mate.

[@dwninetynine]

Hey thanks, have switched to an Ohvale now, next race is 21st May.... :-)

[@p4ndora179]

It’s like watching the MX-5 Cup but for bikes! Love this!!

[@dwninetynine]

Haha, and more fun too :-)n Thanks..

[@remyche8768]

Get a insta360! Awesome riding! Thought you didnt just have enough to get past but you were holding back the whole time! Thats Awesome!

[@dwninetynine]

Haha thanks, just needed the right timing lol..

[@journeyofjerry820]

Awesome my guy. fun video to watch. Waiting for dhm to get parts back into stock before I do any engine mods.

[@dwninetynine]

You and me both! I was waiting for a race head kit, but gave up as it never seemed to happen sadly.

[@ReeceCoza]

Your racing lines were absolutely amazing man, this is some epic riding!!

[@dwninetynine]

Hey thanks, really appreciate the comment.. 😁

[@traviscox9775]

great win !!!!!!!! Awesome Video

[@dwninetynine]

Thanks so much!!

[@Vondon_]

Great race brotha 💪🏾🔥

[@dula4552]

Thats some insane riding! 😵🤯😎

[@dwninetynine]

Haha thanks 😁you wanna see the race afters footage, that’s was knarly, me n greet Moto guy went elbow to elbow several times haha…

[@stephenowens5375]

Not a fan of bike racing BUT that was epic😁✌️ Neat lines on that little beautiful Grom, bet you were pumped after that, well done.

[@dwninetynine]

Hey thanks, yeh I was super happy after chasing them all race haha….

[@user-xm5pr9ot6o]

Racing lines are good bro,, nice win !

[@Cereal_Killr]

Looks like a total blast! You might benefit from a lil lower gear if your allowed. Your turn taking/apex's was much better than those two for sure! Guy in red is a dive bomber...

[@poleng779]

its crazy how low u can go on a curve with the grom, it even look like u drift it the whole time🤣. i cant even do that on mine😂

[@dwninetynine]

Haha, definitely not drifting… I’m not that talented lol. I’m running Pirelli Diablo slicks so grip is amazing…

[@throttletherapyisneeded]

This video makes me want to sell some toys and get set up to track my grom

[@dwninetynine]

Haha do it, it’s so much fun!!!

[@LandonClimbs]

What a race! I love watching track days on small cc bikes. How tall of a rider are you? Im looking to buy one to start track days myself

[@dwninetynine]

Hey thanks, yeh it’s great fun!!! I’m 5’8 and about 90kg in leathers. You should go for it, so much fun!!

[@LandonClimbs]

@dwninetynine thank you for the reply, I'm 6ft but I'm still thinking it'll be fun lol.

[@j.u.l3456]

Felicidades Hermano❤🔥🔥🔥🔥🔥

[@erc10100]

The video is nice but how come you didnt leave the music off? I love to hear my grom all day

[@dwninetynine]

Yeh my bad sry… if I could remove I would….

[@shawnpahl]

Exactly. The music is repetitive and absolutely brutal.

[@jimhineman8695]

Great video and excellent racing lines! Congrats. BTW, what windshield are you running?

[@ghettosled1976]

Yea, no. Cant listen to the same one line of that awful song over and over the entire video.

[@dwninetynine]

Yeh I know, sry about that, bit late to change it now haha.. hit the mute button 😂 Was limited to choices that iMovie offered at the time, best of a bad bunch…

[@clubstyleridahd4695]

We know that's your jam don't lie lol

[@ghettosled1976]

@@clubstyleridahd4695 I mean I like daft punk repeating “around the world” 3000 times, but not this song lol.

[@clubstyleridahd4695]

@@ghettosled1976 😄

[@dwninetynine]

@@clubstyleridahd4695 haha, not exactly FooFighters is it haha

[@dwninetynine]

Hey thanks.. I thinks it’s a Moriwaki from WeBike…

[@alexanderwalter2700]

super cool mate! What is the wind shield your running on the grom in the video?

[@dwninetynine]

Thanks mate, honestly I cant remember.. I think I got it from Webike….

[@supradaddy]

Awesome!

[@NiNWAVE]

what windscreen is this? Ive been trying to find one that isn't gonna make my bike look like an adv with a huge ass windshield

[@dwninetynine]

Hey there, I’m pretty sure it’s a Moriwaki, I got it from Webike Japan…

[@NiNWAVE]

@@dwninetynine ah I see thanks, sucks it costs them so much to ship go the US

[@dwninetynine]

@@NiNWAVE I know right… honestly they’re not any cheaper shipping here… I have a Kei Truck and it’s the same for that, you pay the same for shipping as the item you’re buying… crazy!

[@NiNWAVE]

@@dwninetynine Yea, seems like even with the shipping though compared to similar quality ebay and amazon options the webike ones are gonna be cheaper or about the same

[@brianrichard1768]

cool. what size the 2 strokes limit? 80?

[@dwninetynine]

Supposed to be capped at 85cc but there are some that are clearly faster!

[@brianrichard1768]

@@dwninetynine ya, your corner speeds were higher. impressive

[@dwninetynine]

@@brianrichard1768 yeh thanks, it’s the only way I can catch the strokers lol…

[@FlyliteParamotor]

Go grom go 😍😍😍😍😍😍😍😍😍👍👍👍👍👍

[@auomauom]

nice race! Love groms as well! What exhaust set are you running?

[@dwninetynine]

Hi mate, thanks.. I'm running a stainless cusom fabricated header with just an amazon end can, theyre cheap and easy to replace.

[@miniman1448]

Hows the reliability on the dhm 149

[@dwninetynine]

Awesome.. Ive actually sold the bike now to a friend but its still goung strong.. I raced it and did a number of track evenings with it and it never missed a beat, notably I had the bike custom tuned to accomodate the upgrades including intake, ecu, injector, throttle body, oil cooler, cam etc and all is still going well.. I was certainly not gentle with it and rode it hard pretty much from the get go, I gave it 30 minutes "run in" if you like... The bike could probably do with the uprated starter motor after mods like these, just fyi...

[@royjarvay]

Wer bwts are you from pal? I’m wanting to get DHM 149 myself but I live in uk and David at DHM said the ECU tune is diff for USA bikes so he can’t do uk ECUs do u av any idea how I can get around this problem,thanks Lee

[@dwninetynine]

Hi Lee, I’d suggest contacting Cameron at CJR Performance. He’ll take a full inventory of your mods and will Flash your ecu accordingly. You may have to send him yours but it’s worth it, he’s done all mine. I’m English, Essex Boy, but live in Melbourne Aus now….

[@royjarvay]

@@dwninetynine cheers pal think aus model same as uk so ye il sprreak to camoron,how long it take to send n get bk? but thanks a mill,hope i can get this sorted

[@dwninetynine]

Takes a couple of weeks mate i think.. good luck 🙂@@royjarvay

[@royjarvay]

cheers pal let ya know how get on@@dwninetynine

[@dylanboyle2995]

That bike needs the 250 or 300 swap and it would kill

[@dwninetynine]

Haha for sure it would, but it would be illegal to race 😉

[@dylanboyle2995]

Man they should make an unlimited class for swapped stuff been thinking about getting 1 but top speed is where it kills me if it would atleast do highway speeds i could justify spending the 3k on it but if it had a 300 swap or 250 ya i might lol

[@user-xm5pr9ot6o]

I would sub but I already ammmmm,,, ;)

[@888jackflash]

Great video... terrible music

[@dwninetynine]

Haha, yeh, I apologise for that, I had to choose something from iMovie that wasn’t. Copyrighted and, you’re right, it’s aweful lol!

[@888jackflash]

@@dwninetynine Outstanding. Hey, can you say anything about the robustness/reliability of the mods you've made to the motor? I'm Grom Curious, thinking about pulling the trigger on one, but concerned about stories of con-rod failures and seized pistons after such mods. - Rgds from New York

[@dwninetynine]

@@888jackflash hey sure yes.. The most critical thing you have to do is ensure that the ring are gapped correctly if you fit the big bore kit from DHM.. Tose that have seen failures have not done this and when the rings expand with the heat they can seize. Other than that al the mods I've made are easy to do and would rarely every case issue. You need to ensure your valves are gapped correctly when fitting the S1 cam and that you either run an ARacer or have your ECU flashed by CJR or David.. Cameron has done all mine and they have been fautless., Then its stuff like the clutch spring mod, shift shaft support etc and very important to run an oil cooler. I think where you're seeing failures also is with the SF and OG Groms, these can be more highly modded which does indeed stress parts like the rod and crank, bearings etc.. With the 149 kit its not as powerful so much less risk.. Ive been running mine hard on track only since I fitted all the BBK and no issue at all. Just ensure you're up to minimum 50 degress c before you ride it hard.. Hope that helps....

[@shawnpahl]

Thank you… I’m glad I’m not the only one within the first 30 seconds. I was like what the hell am I listening to and it just keeps fucking going

[@shawnpahl]

God, the music is horrible