Episode 6: Big Bore Kits - Royal Enfield 650 Twins

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Big Bore Kits for the Royal Enfield Interceptor and Continental GT
Episode 6 of our Royal Enfield Twin 650 Performance Series
Big Bore Kits - What comes in the kit, what needs to be done, and what can I expect?
Time Stamps:
0:00 Opening
0:11 Intro and Updates
1:28 Kit Components
1:43 Piston design and function
3:50 Machining and Installation
7:28 Time-lapse of engine build
9:00 How's it sound?
9:38 What can I expect? (Dyno sheets included)
11:12 Frequently Asked Questions
16:47 Closing and Next Weeks Topic
Shop Online:
S&S Cycles 865cc Big Bore Kit
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S&S Cycles 750cc Big Bore Kit
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Detailed explanation of Engine Bore and Stroke and it's effect
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Опубликовано:

27 июл 2024

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Комментарии : 351

@Britishshooter 3 года назад

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 3 года назад

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

@magicdaveable 2 года назад

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.

@TheAbhinav1001 3 года назад

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

@tanaysinghrautela9660 3 года назад

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

@brookcampbell2940 3 года назад

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.

@carlomac 3 года назад

To Revelry Cycles, Love the video, thanks for all the work involved in making them all, there really is nothing else like it on RU-vid. 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 3 года назад

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

@ark1289 3 года назад

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

@drhunter1117 3 года назад

abhilash r.k same here ;-)

@Gambo916 3 года назад

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.

@brunoviallet7952 3 года назад

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

@thunderstruckperform 3 года назад

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

@tomkitchen2764 3 года назад

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

@hendetta 29 дней назад

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.

@douglasfleetney5031 3 года назад

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

@VS-xo4bn 3 года назад

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

@FikkieSteker 3 года назад

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!!

@alexiskmt 3 года назад

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

@SeaYaSailing 3 года назад

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

@tonyfitzpatrick6799 3 года назад

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

@jasonrichardwatts 11 месяцев назад

You two are AWESOME and explain things so well.

@davidquoniou283 3 года назад

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

@hoopshooper9102 2 года назад

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.

@julianwinn4502 2 года назад

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.

@kencohagen4967 3 года назад

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 11 месяцев назад

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

@johnpflug1567 3 года назад

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

@thinkingindian3308 3 года назад

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

@nomaanhusain 3 года назад

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

@juans3728 2 года назад

WOW, that sounds sick.

@petebird7171 3 года назад

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

@jeroberkley8852 3 года назад

Downright fantastic videos.

@_JimS 2 года назад

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!

@darrenwalsh6965 3 года назад

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

@karthiktirumalasetty3621 3 года назад

Nice video regarding big bore kit. Thanks Sir

@messidor4399 3 года назад

Beautiful work, congrats from Paris

@Raynorvd 3 года назад

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 3 года назад

Glad you enjoyed it!

@stevenlars4914 3 года назад

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.

@harrynarayan2204 3 года назад

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

@ark1289 3 года назад

You guys are awesome.

@cristian4963 3 года назад

Finally the first video about the kit

@jpd80s19 3 года назад

Quality work guys.

@mnjjjmmmkk 3 года назад

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

@lorenzodelacruz9488 2 года назад

Amazing video format honestly

@Shaqeroni 3 года назад

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

@RevelryCycles 3 года назад

Happy Birthday Daniel!

@timclaus8313 8 месяцев назад

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

@raywite6665 3 года назад

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.

@richardcasey7521 3 года назад

Great video!

@chhatrapal4164 3 года назад

Really nice video with proper information.

@Billyjack050 3 года назад

Great job guys

@chriscoates2399 3 года назад

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

@estebanthomas3432 3 года назад

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!!!

@arjungangadhar6134 3 года назад

You guys are so informative

@miltondesilva542 3 года назад

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

@JD-275 3 года назад

Wish I had you guys over in Texas

@NipunM10 3 года назад

Totally worth every penny.. Great video. Thanks Guys :)

@Cptblackbart 3 года назад

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

@mooman12 3 года назад

@robertojorgegenzone723 3 года назад

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

@RevelryCycles 3 года назад

"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 3 года назад

@@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...

@alstyreshaddon2645 3 года назад

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

@G58 3 года назад

Subscribed! Thank you for sharing

@notstevelam 2 года назад

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.

@markmcintosh7095 3 года назад

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

@ianwelch484 3 года назад

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 3 года назад

Wondering the same mate! 😂

@chrispulham4779 Месяц назад

Thanks, great video!

@Allagi22 2 года назад

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.

@MontageRock 3 года назад

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 3 года назад

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 3 года назад

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

@leonardosilver9578 2 года назад

All this modifications will cost so much that you could just buy a Triumph Speed Twin

@ilovemalechickens 8 месяцев назад

Not everyone has the money to do that in one go. Plus the RE looks sexier

@rafagustav1843 6 месяцев назад

Are you guys originally from southwest USA?

@rafagustav1843 6 месяцев назад

You don't sound Aussie!

@brianmcleod4815 3 месяца назад

You mean a triumph water bottle from Thailand? Heap of junk. RE is the quality option.

@hunkass3982 3 года назад

lovely

@rufinohenrique7156 3 года назад

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

@barryroberts2474 3 года назад

Well presented and totally interesting. I'm hooked after one vid! WA.

@RevelryCycles 3 года назад

Thanks Barry be sure to subscribe and share with your friends!

@G58 3 года назад

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 3 года назад

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

@sanjo7ph 3 года назад

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 🙂

@josecarlospoggian149 2 года назад

Great to find your Chanel , thanks !!

@RevelryCycles 2 года назад

Glad you enjoy it!

@internetpolification 2 года назад

Yeah, French perfume is so nice

@mick998r 3 года назад

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.

@bitbinge 3 года назад

Wow, stumbled upon this. Subscribed 2 minutes in.

@MrTexMart 3 года назад

9:29 that smile!

@MrTexMart 3 года назад

The camera literally shakes!

@ghumakad1919 3 года назад

Very helpful

@GraemeBlore 3 года назад

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 3 года назад

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

@adrhar64 3 года назад

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 3 года назад

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 3 года назад

Great info Mark thanks for that 👍

@b.bruster1462 2 года назад

Thanks.

@donniceblakely1075 3 месяца назад

I bought my youngest son a 650 for a graduation present, and I think I started a cult! He loves and others he hangs with as well.

@ksmotoshed7961 3 года назад

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

@The_redBaron 3 года назад

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 3 года назад

We discuss them in the Camshaft Video at 6:55 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-97arnlpiJe4.html

@The_redBaron 3 года назад

@@RevelryCycles Thanks again 🙏🙏 my bad 🤪🤪

@RevelryCycles 3 года назад

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

@andycarruthers1 3 года назад

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

@FineDaysAdventures 3 года назад

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

@donwiryo 3 года назад

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 3 года назад

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 3 года назад

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

@internetpolification 2 года назад

Excellent. Wish there was someone here in the U.K. that does this

@richardjudd4579 Год назад

Hitchcocks offer similar

@internetpolification Год назад

@@richardjudd4579 yes, I looked into it. On reflection, it’s a lot of money to achieve not that much, I thought. Big bore kit and power commander which means replacement cans, then upgraded clutch. All a bit pointless, I thought

@TheClassicMotorcycleChannel 2 года назад

Good video :)

@rakeshraveendran4882 3 года назад

Wow 😎

@harrynarayan2204 3 года назад

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

@alanmcallister7174 2 года назад

Probably the best videos I’ve watched for information on how motorcycles work and in layman’s term which really helps. Love the look of those race headers you do, for the RE650, are they available in the UK? Keep up the good work, ride safe and thanks 🙏👍

@RevelryCycles 2 года назад

Thank you! We ship regularly to the UK, but only from our race shop site. shop.revelryracing.com.au/product/stainless-race-only-header-set/ Cheers,

@morrisminor56 3 года назад

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

@jamesfairmind2247 Год назад

The 865 kit is fine but I wish they made a 750 kit which would match the original 750 Interceptor because in my opinion RE biggest mistake was not to do exactly that. The whole point of the original Interceptor was that it was the first 750 British twin made in 1962, so why build a 650 version now carrying that famous Interceptor model name? A contemporary 750 in the same tune would have produced around 54 BHP and more than enough extra torque without compromising smoothness or fuel economy. Opportunity missed in my view.

@RevelryCycles Год назад

Well you're in luck! Here's the link to the 750cc Kit. shop.revelryracing.com.au/product/750cc-big-bore-kit-for-royal-enfield-650-twins/

@jamesfairmind2247 Год назад

@@RevelryCycles Thats great thanks. Does it require the clutch upgrade or is the standard clutch ok? Is it as smooth as standard?

@RevelryCycles Год назад

Yes you’ll definitely need the clutch and yes it’s very smooth.

@michaelreid2329 Год назад

As I understand licencing restrictions the 650 provides access to learner riders that the 750 would not. I suspect India may also have power limits: you just don't see many big bikes on other vlogs from India. Personally I doubt whether the quality of the original RE would have made an 860 a ridable bike. However it would make sense for the New RE make an 860 alongside the 650 to provide a path for people who have moved past licencing restrictions to access a great twin cylinder bike.

@jamesfairmind2247 Год назад

@@michaelreid2329 You are probably right but it is a shame that a 750 option was not offered from the factory. I am not a fan of the 860 concept myself. 750 would have been the perfect balance and more historically appropriate if RE are going to use the Interceptor name.

@novaculus 2 года назад

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

@SubhomMitra 3 года назад

We want Episode 7 pronto!

@RevelryCycles 3 года назад

Working on it!

@davidmacgregor5193 3 года назад

The Royal Enfield Continental GT and Interceptor were originally conceived as 750cc twins, but R.E. realised a 750 twin would be too powerful for their home market riders to cope with as a jump up from their 500cc single, so they lowered the capacity of the twin motor to 650cc. I personally think the 650cc is ideal for the Indian market, but 750cc would have been better for their international markets.

@RevelryCycles 3 года назад

Interesting what is the source of this information?

@Ron.xionzre Год назад

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!

@andrewbull3537 3 года назад

Excellent video (as normal ......yeah i know,same comment EVERY WEEK !!!) ,excellent explication of what your doing (christ,i ate a dictionary!!!) keep up the good work. 😁😁😁👏👏👍

@RevelryCycles 3 года назад

Always glad to hear it! Thanks Andrew. 😊

@griff1709 2 года назад

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?

@karlsquire8148 2 года назад

Thanks for the vid, you guys do a great job, just one question, in this vid I believed you guys said or implied that , with Big bore 865, free air filter, performance S&S cam, your headers, ECU and CNC valves/heads Dyno was saying 70ish HP did I hear that right?. if so any idea what kind of HP one would be looking at with all of the above but not the Head and Valve work/CNC, if you know what I mean. Thanks

@sugardaddy9721 Год назад

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