Episode 6: Big Bore Kits - Royal Enfield 650 Twins

[@Britishshooter]

I love these two, they are just so down to Earth in terms of explaining the important aspects of these conversions. If I lived in OZ and wanted to upgrade my 650, these are the only people I would trust with the job. I hope they move on to brake and suspension upgrades soon, I am sure they will. They seem like a lovely laid back couple who are just living their dream doing what makes them happy.

[@nikitis13]

Your enthusiasm and passion is simply infectious, love your work. Godspeed to you both next weekend at the drag strip 🏍⚡️💨

[@TheAbhinav1001]

I have been searching for this video ever since S&S had introduced it for RE650 Twins. Very beautifully explained video.

[@magicdaveable]

Great video. Thanks for the excellent info. I am a Triumph old timer that had a '62 Tiger 650 with 800 jugs. It was my Sportster killer. After building the engine I wound up having to install a disc brake system. That old Triumph was a really great bike and I truly miss her.

[@carlomac]

To Revelry Cycles, Love the video, thanks for all the work involved in making them all, there really is nothing else like it on KZbin. By the way, really appreciate the sound of the bike in the demo, it sounded awesome!!! To me the sound of the bike is so important, can’t wait to hear more in the future. Enjoy the break guys!

[@SubhomMitra]

Always like these videos before I'm done watching! Great series, lots of useful information. Thanks a ton for all your hard work.

[@ark1289]

Same here. And also the only channel I've pressed the bell icon for

[@drhunter1117]

abhilash r.k same here ;-)

[@tanaysinghrautela9660]

"Fire breathing, tyre smoking, wheelie popping little monsters" Absolutely loved it!!!!!!

[@brookcampbell2940]

Thank you! No one else will do a video like this. I think I'm going to go full bore, no pun intended, with the 865 kit.

[@Gambo916]

Yet another abso brill Revelry vid! Enjoy your weekend off to go racing guys, hope you get the results you want and stay shiny side up. Looking forward to both the head and throttle body vids.

[@tomkitchen2764]

It's refreshing to listen to people who know their 'stuff'.

[@thunderstruckperform]

Awesome video very well presented, the big bore deal definitely sounds more healthy and responsive than stock

[@brunoviallet7952]

Once again very good job. Hi biker from FRANCE!!

[@VS-xo4bn]

What a great channel! Thank you so much for sharing knowledge and experiences. Good luck at your racing!

[@julianwinn4502]

I really like your channel. You are clearly great people who know exactly what you are doing. Also a strong partnership which is nice to see.

[@alexiskmt]

Amazing video guys! Looking forward for the next one!!

[@douglasfleetney5031]

Love the sound of that 865. Certainly a lot crisper than the standard 650. Good work Guys, really enjoy these.

[@FikkieSteker]

Thank you for answering the question about the reliability of the engine after a big bore upgrade :-) I recomment this blog to everybody because its very educating with a nice tone :-) First thing i want to change on my Inter is the front and rear suspension, i still cant make a choise between the YSS and Hagon setup.....OK seems we will have to wait a bit longer for the new vid, but hey.....its worth the wait!!

[@tonyfitzpatrick6799]

Thanks for another great video. Can’t wait for my new Interceptor to arrive. You keep giving me more ideas for upgrades so it’s gonna be a fun journey

[@MontageRock]

Awesome! Wish I knew someplace here in New Zealand that would do a good job of this that I could trust. I'm sure there is, and I just don't know about them yet!

[@RevelryCycles]

Talk to our mate Daniel in Wanaka. They built an 865 and raced it on the beach in Invercargill at the Burt Munro festival 👍🏻

[@benhutchison2538]

U can get a version with new head included. Your royal enfield mechanic should be capable of installing for a price.

[@Raynorvd]

All the way from the Netherlands I send you big thanks for this! Answers lots of questions and it's a joy to watch. Now to inform my Enfield dealer about my plans :p

[@RevelryCycles]

Glad you enjoyed it!

[@stevenlars4914]

De RE hebben inderdaad net een beetje weinig vermogen. Ik vraag me wel af of die Brembo remmen circa 200 cc extra aankunnen.. Idealiter pak je dat ook aan.

[@davidquoniou283]

hello it's a real pleasure to follow your videos. i can understand myself, and that's a feat. good luck for the race. may the force be with you. thank you from France

[@jasonrichardwatts]

You two are AWESOME and explain things so well.

[@MiketakesaHike]

This answered so many questions...................wish you all were in the US........love to order....but shipping would be a killer......stay safe.....

[@kencohagen4967]

To me, mechanical is magical. I built automotive engines for 20 years. So this is what I’ve been looking for! The other problem I have is I need to lower the bike so I can get my leg over it. I need about two inches, and maybe even a different seat to help that situation. Also, as a viewer and potential customer your companies biggest stake holder is me, and as what amounts to being your boss, I’ll give you that weekend off for research purposes. You may also right off your trips expenses as long as you provide us with videos of your trip!

[@vikaschopra6168]

Great video - I am glad that I finally got answers to ALL the questions I had wrt big bore. Thank you!

[@johnpflug1567]

Wow! Great video. An RE 865 is for me!

[@cristian4963]

Finally the first video about the kit

[@raywite6665]

There is a lot of work in those jugs, we get our Bonneville (865-790) kit jugs ready made 904/995/1200 cc to suit. But you are correct that takes skill to overbore and press in, if it is not done correctly that sleeve will try to ride with the piston at some point. The cam really is the magic, get that grind right and you are putting together a rocket. Love the RE.

[@hoopshooper9102]

Awesome watch. When I clicked on vid I expected you to be English with the Royal Enfield......then I heard your accents...... Then was surprised to hear your in Sydney which was great as I'm in Auzz too.

[@_JimS]

First time here, from the States. Looking to get an INT650 in the near future and doing some homework. Enjoyed this vid and will be checking out more goodies. Thanks!

[@Shaqeroni]

Awesome video released on my birthday...lol. I want a RE 865 now. Thank you.

[@RevelryCycles]

Happy Birthday Daniel!

[@karthiktirumalasetty3621]

Nice video regarding big bore kit. Thanks Sir

[@notstevelam]

seriously considering the big bore kit!. i can also confirm the mileage that a stock gt650 gets. around 19-20km/litre for sure in city riding. only on pure highway rides do i get anywhere close to 29km/litre on this bike.

[@JD-275]

Wish I had you guys over in Texas

[@chriscoates2399]

That's Complex Engineering . Seriously . And Well done Guys n Gals !! Long term reliability cool . Heat no great , fuel good That bike revs and Sounds great

[@ianwelch484]

Brilliant video guys. When can you come over to the uk and Make my royal into 850. It’s sounds great. lol. Looking forward to seeing your next video. Keep up with your fantastic video. Stay safe.

[@alexiskmt]

Wondering the same mate! 😂

[@juans3728]

WOW, that sounds sick.

[@estebanthomas3432]

Your videos are great!!! Congratulations!!! I am a Royal Enfield user from Argentina and enjoy all your postings!!! I suggest you pay attention to the volume and quality of the sound in some of your videos, all the rest is really great!! Cheers!!!

[@robertojorgegenzone723]

Very good videos, didactic, simple and full of enthusiasm. Best regard from Buenos Aires, Argentina

[@RevelryCycles]

"Didactic"... now there's a great word! It's like "gargantuan" in that you so rarely get an opportunity to use it in a sentence. Good on ya!

[@sharknado7157]

@@RevelryCycles Well, another question from the "antipodes".... (ding), if you allow me. The original liners look like pretty thick ones ( about 6/7 mm, doing the math, considering they have just a little more outer diameter than the 865 piston, as you showed it ). It seems that, with the 865 kit you´ll have to also drill the carters, and perhaps adapt the cam chain bottom gear shaft (In proper english might be better understandable I guess...). Do the 750 kit fit in the carter as it is? That would explain the two sizes...

[@mick998r]

Loving all your weekly uploads. I'm sure you'll be covering the brakes options given all the extra HP. Or are they quite capable? Thank you once again.

[@novaculus]

Thanks, informative video. Question: How are the engine's dynamic balance and vibration levels affected by installing the 850 kit?

[@donwiryo]

Finally I found the video about the s&s 865 big bore kit. I'm curious the drag race between this upgraded 865 with the 650 standard. Please 🙏🏻

[@RevelryCycles]

We haven't run a standard 650 in a head to head against the drag bike. Sounds like something we need to do pronto! Thanks for the great idea Don. As soon as the track is up we're on it!

[@donwiryo]

@@RevelryCycles I believe it will be lots of viewers and probably the first on KZbin. It is like the comparation in real life, even though you already put the information about HP and torque increase.

[@nomaanhusain]

this channel is so good, also very happy to listen to some metric units!

[@Ron.xionzre]

Hi guys, has there been any reliability issues from this in the last 2 years? I know you mentioned it shouldn’t be an issue because of how well the engine is designed, but I am a little worried about going this route. Though I would absolutely love this!

[@ark1289]

You guys are awesome.

[@Allagi22]

Thanks for this video. Really puts into perspective how big of a job it really is, definitely not for your average home garage wrencher rookie. Considering the cost and work, (not to mention inherent risk in fundamentally altering the engine) just doesn't seem worth it for me. I would certainly trust a specialty Royal Enfield shop like yours to do the work, unfortunately there are none around me.

[@messidor4399]

Beautiful work, congrats from Paris

[@harrynarayan2204]

At ⚡ 9:20 ⚡ that is making me to ORDER one, it is BRUTAL !!!! I request you to post exhaust note, flyby🤤

[@adrhar64]

Hi Guys, I am in the UK and have the bigbore 865. Did you find the clutch needed upgrading to a performance clutch? Interesting on putting a 16 tooth in over the 15

[@markcard7978]

I run the 16t on a stock motor, it makes 60-80mph cruising on the freeway/motorway in 6th much more relaxed. Fifth gear more or less replicates the previous 6th gear and gives a bit more urgency for passing. 1st gear is still fine for launch from a stop (I do run a power booster to eliminate the lean stumble on low revs). One thing they do not mention, as per the "Hitchcock" site the stock chain length is short for the 17t front cog. So the 16t is a "drop on" the 17t needs a chain as well.... I'm sure the 865 kit would benefit from the rev drop in either case....

[@adrhar64]

Great info Mark thanks for that 👍

[@Thegeekishnerd13]

The amount of work done on making these videos is commendable. Will the 865 kit + filter + exhaust + powertronic give me close to 70-75 hp ?

[@Thegeekishnerd13]

hello guys. any word on this ?

[@RaunakPSingh]

actually its around 60 to 65 hp

[@arjungangadhar6134]

You guys are so informative

[@thinkingindian3308]

That’s some serious stuff guys. Appreciate the breakdown. Keep em comin...

[@AndyBarbosa96]

What about maintenance and support? Who can service big-bores?

[@markmcintosh7095]

6 hours labor seems more than fair for labor. I'm enjoying your channel. Thanks

[@naveengorige5642]

What about the vibration of the machine after upgrading to 850. Is it's remain same?

[@harrynarayan2204]

Im very much interested in s&s kit should upgrade soon

[@jeroberkley8852]

Downright fantastic videos.

[@justanothermotorhead4487]

Hey there, I'd like to know what the difference in the top speed of the bike with this upgrades? And before anyone tells me, Yes, Speed is not everything there is. Yet, I'd like to know that info.

[@timclaus8313]

Your work turns a Royal Enfield 650 into a Norton Commando, lol. Those old suckers were quite quick for the day.

[@ksmotoshed7961]

Great video as always!! Do you need a clutch upgrade as well after installing one of those kits? Thanks!

[@hendetta]

I'm here in 2024 going down the RE rabbit hole on YT bc i just got hold of my GT650 Dux Deluxe. I don't feel the need for any major upgrades atm but this big bore option seems very appealing later down the line. Thx for all the great info.

[@amaanalikhan2191]

how would it work with the rego in NSW can it get away with being registers as 650 with a 850 kit ??

[@chhatrapal4164]

Really nice video with proper information.

[@rufinohenrique7156]

i'm brazilian subscribed to your channel. I see your content and it has a lot of quality. they could include subtitles in Portuguese to make the content feasible for a larger number of people. good job

[@richardcasey7521]

Great video!

[@vickramsrinivas5799]

I’m confused between 16T & 17T I’ll have to change my chain if I have to go with the 17T, could make a video or reply to this video as to what I can expect out of the 17T sprocket.

[@RevelryCycles]

Front Rear RPM@100KPH KPH@7250RPM 15 38 4350 175 16 38 4000 186 17 38 3650 198

[@G58]

Really enjoyed this. You’re basically doing what I said these things needed right out of the crate. But I got so much flack from the guy who tested one of the first ones in Australia (and his little harem of crybabies), that I suspected the twins were only going to appeal to tiny Swedish Elf puppet worshipers. I’m truly delighted to see some serious folk doing the necessary work on them. And I don’t own one yet. Got too many Hondas, a CCM/BMW and a brace of Bultacos to fix. How about carb conversions? I know the old Concentrics will challenge too many modern riders, but you’ve got some guys offering flat slide Mikuni carbs down your way... Imagine the possibilities!!

[@G58]

Damien McArthur When I did Biology at 11 years old, I was taught that life on Earth depends upon water, plus sunlight and carbon dioxide to enable photosynthesis - the reason plants grow. The criminalisation of Carbon is a crime against humanity. Instead of the genocide proposed by the psychopathic eugenicists giving global governments their orders, maybe humanity would benefit from a top-down suicide pact. I’m in the UK. Things are not much better here. But looking at the way most people are acquiescing to the lockdown tyranny, and the disgusting ways the police are responding in Victoria, I’m glad I’m not in Australia. The irony of a ‘former’ prison colony locking down an entire state based upon false evidence is not lost on me. I have a cousin there. She’s stopped talking to me! When I build my RE 650 based special it will have no stupid computers, flat slide Mikunis and no cats. Peace

[@MrTexMart]

9:29 that smile!

[@MrTexMart]

The camera literally shakes!

[@morrisminor56]

Good video with useful info, just a pity you're in Oz and not the UK.

[@chriscoates2399]

What bhp can I expect from 750 kit ? ,, and with reliable cam upgrade ?

[@Cptblackbart]

grate work guys. making me wish i was back home.

[@GraemeBlore]

Brilliant stuff folks. Answered every question I could think of, and did it SO well. Keep up the great work. BTW, any rumours about RE bringing this out in a 1000 cc version? I reckon it would be an absolute BEAST!

[@RevelryCycles]

We only speak in truths, tests and known. Never rumours or assumptions. ;-)

[@johnfarrand5574]

S&S cam, big bore kit, Air filter, Diablo full exhaust installed.. what would be better, Dynojet or Powertronic?

[@RevelryCycles]

Either will work. For more detailed explanations of the differences check out our Tuners videos kzbin.info/www/bejne/rGG2fGybl8pplbM

[@mooman12]

[@sanjo7ph]

If I lived in Australia, I'm sure your garage would be my preferred home address.. great work you got going there! please let me be your garage dog 🙂

[@muttineni03]

What about Vibrations? does 865cc produce more vibrations compared to stock 650cc? your videos are brilliant guys!!

[@sugardaddy9721]

I'm very interested with the bore up kit but as I understand it, do you need other component as well to make it work? namely: - Valve Shims - New sets of Headbolt

[@jpd80s19]

Quality work guys.

[@miltondesilva542]

Thanks for that information.I’m across the ditch in Auckland Nz.So close but so far away to have you do my engine.👍

[@griff1709]

Hi what do you think of changes in piston weights and balancing counter balances. Would you consider anything like this to be an issue concerning vibrations and longevitivy of the bike. Also how much do you charge total for kit and installation?

[@petebird7171]

Only just found your channel, what great videos, looking forward to seeing more, thanks 👍👍👍👍👍

[@lorenzodelacruz9488]

Amazing video format honestly

[@chiragv5110]

Hello, excellent work. The way you guys put effort in explaining each and every aspect is very much important and helps millions of people . Can you please share a link where I can purchase this kit with the block since I can only find only the piston. If you could please help me out so that I can get hands on one of these in india . Thank you and keep up the marvelous work you guys shel out .

[@RevelryCycles]

You can order a complete kit with Finish Machined Cyllinder here: shop.revelryracing.com.au/product/865cc-big-bore-kit-for-royal-enfield-650-twins/ Just tick the box to "Add Cylinder Block" for a kit fitted to complete finish machined cylinder assembly.

[@johnharvey5338]

could you put a stroker crank in the bike, and what could you go out to?

[@alstyreshaddon2645]

love it , i need to get one and love your channel , cheers Alister in Ballarat.

[@1priyansh]

With so much of technical upgrades, lets do a final top speed run, so that we get to know how nicely does it hold at its achievable top speed.

[@RevelryCycles]

Where would you suggest we do such a run? Our drag strip is a 1/4 mile, so while we go fast we could go faster with more road. The road tracks are curved and not suitable for a top speed run. The street speed limit is 110 kph. So short of a land speed attempt or risking getting arrested there's no possible way to find top speed.

[@1priyansh]

@@RevelryCycles I fhinlt Pacific Highway could be the option, the stretch starting from Lake Innes is a 10-12 mile straight one with just some minor bends, and its rural 😉

[@RevelryCycles]

@@1priyansh 🦘 you first mate. Say hi to Skippy for me

[@1priyansh]

@@RevelryCycles There are some defunct airfields too, you could try their too. People have being doing top speed runs on Australian roads even on grand Pacific drive, you should too....dont give excuses after so much of work you have on your moto 👍

[@RevelryCycles]

@@1priyansh reckless and dangerous is just not how we roll 👎🏻 Not gonna happen

[@gt650johnn]

I'm interested in seeing if there are any performance upgrades for the brakes on the 650 Twins? I already installed the performance air filter and thinking about buying your exhausts, but I don't want to add more power than the brakes can handle safely. Great content!

[@stevenlars4914]

Very good question indeed. The stock Brembo brakes seem to be ok for 650 cc. More than 200 cc extra is a different matter.

[@darrenwalsh6965]

Nice work! Love your video's guys - keep up the great work.

[@The_redBaron]

A ton of good information. A big thumbs up for both of you.👍👍 Can you please do a video on high compression pistons from S&S on stock cylinder? 🙏

[@RevelryCycles]

We discuss them in the Camshaft Video at 6:55 kzbin.info/www/bejne/b2jEo6Gipc59m5Y

[@The_redBaron]

@@RevelryCycles Thanks again 🙏🙏 my bad 🤪🤪

[@RevelryCycles]

@@The_redBaron not at all, it’s a lot of information to go through.

[@negenelf123]

How many hours does it take to get it all in and running ?

[@andycarruthers1]

Nice piston ring compressor. For those that can't make something like that a large jubilee/hose clip does the job.

[@FineDaysAdventures]

Really can't recommend that. It's too easy to damage the piston.

[@mnjjjmmmkk]

Love the video , so much info given effortlessly , you got my sub and keep up the good work.

[@Billyjack050]

Great job guys

[@chrispulham4779]

Thanks, great video!

[@G58]

Subscribed! Thank you for sharing

[@johnDukemaster]

Did I get this right? No need for crankcase work to fit bigger liners? Thanks!

[@RevelryCycles]

That is correct 👍🏻

[@block672008]

what are the original cylinders made of - aluminium and nicasil or are they originally pressed with cast iron liners?

[@moto9492]

I wonder if you'll ever do a Hitchcock's 462cc kit for the Himalayan...

[@RevelryCycles]

We can neither confirm or deny that there may (or may not) be racing coming up for which we may (or may not) have two flat tracker projects in the planning stages. If this were the case (hypothetically) one of them might be Twin based and the other Himalayan based. Shhh... don't tell anybody!

[@mickconnolly9920]

How much does a RE 865 kit cost with standard chain sprockets.?

[@bitbinge]

Wow, stumbled upon this. Subscribed 2 minutes in.

[@hunkass3982]

lovely