Koga Miyata Dura Ace AX vintage road bike restoration
ฝัง
- เผยแพร่เมื่อ 28 ก.ย. 2024
- Today's build is a showcase of innovations that have fallen behind because they were too ahead of their time. Today's build is a show of technical solutions that wanted to change the world of racing cycling. Today's build is about Shimano Dura Ace AX components and Koga Miyata. Let's build a bike from this exceptionally beautiful and technically bizarre set… Perhaps you will forgive me my hands shaking a little…!
If you like our video, please click on subscribe and have a look at our older videos…
Dnešní stavba je přehlídkou inovací , které zapadly protože příliš předběhly svou dobu. Dnešní stavba je přehlídkou technických řešení , ktará chtěla změnit svět závodní cyklistiky. Dnešní stavba je o Shimano Dura Ace AX komponentech. Chtěl sem sadu Ax postavit na rámu, který bude dobově i ideově odpovídající: Koga Miyata. Tak tedy pojďme postavit kolo z této výjimečně nádherné a technicky prapodivné sady. Snad mi odpustíte, že se se mi trochu třesou ruce…!
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I was in the bicycle business here in the U.S. from 1972 until the early 1980s and remember how beautiful and well made the Miyata bikes were. Didn't see one very often, but each one was a treat. So is your restoration....looks good!
Thank you very ,very much!
Great vid. All beautiful pieces of kit.
Back in the day, we’d twist the toe straps twice as we lace them through the back of the pedals to stop any travel of the buckles.
Thanks for the support, DA AX is truly an amazing kit. Sometimes I even put two straps in the pedal to hold it properly. Thank goodness for LOOK!
Subscribed! What a beautiful bike. I am biased as my first bike that I purchased with my own hard earned summer money was a 1983 Pro-Miyata with full Shimano AX group, even the handlebars. I still have it even though it does not get ridden too much, only on special occasions when I want to relive my youth. Along with it is a NOS 1982 Team-Miyata I purchased around 2000 when nobody wanted them. I built that up with a full DA EX group with AX stem and handlebars. I couldn’t leave well enough alone and in 2005 found myself rescuing a 1991 Team-Miyata from becoming somebody’s next fixie. I ended up building that one up with a nice DA 7700 series group. From then to now, I’ve managed to pick up another Team and European Full-Pro, and even a late ‘80 Team track frame. The one bike that I’ve never come across is the 1983 Team-Miyata-SL with Campagnolo group. That is one I’d love to have. Even back in the day, my Miyata bike shop never got one in but had a couple of the Aero-Miyatas, go figure. Thanks for the great video!
Thanks for watching! So you're a great connoisseur and collector of first-class K-M bikes! I like steel bikes and the DA 7300 is such an extraordinary set that I am very glad that I was able to finish this construction. It took me a couple of years to get all the parts and the frame.
@@OnRoadVintageBikes Over here in the US, Miyata did not have any affiliation with Koga but yes, I like Miyata frames. I've always loved the blue and gold color combination. And their paintwork back in the day was heads and shoulders above that coming out of Italy for the most part. My paint is original and for the most part, still looks great. Generally, I was careful to always wash down my bike after rides, removing any sweat. I had a Pinarello Montello in 1988 that even with that same care, ended up developing some rust, mainly towards the head tube and under the forks. The finish was not the best and was actually quite delicate. I have another Pinarello Montello (w/original matching finished and pantographed stem and seat post) in the original Cromovelato finish and I am hesitant to take it too much because the finish is quite thin, although it is sprayed over a fully chromed frame. I probably should have it clear coated but I already have too many project bikes on my hands, LOL.
A ver tengo un marco PANASONIC AL 9000. Creo que es del año 89. Alguien conoce ese Marco. Casi no tengo información al respecto . No es acero creo que es aluminio . Saludos desde Costa Rica .
This is absolutely stunning, it's a piece of art, the care and attention to detail you put in, is second to none, brilliant work!
Thank you very much for your huge support, I appreciate it !
The craftsmanship on those Dura Ace components is wonderful, they're like small pieces of (functional) art.
Seeing them put back in service on such a nicely restored frame, with great care and attention to detail was great. Excellent result! 👍
Thank you very much for the support.
One of the best classic roadbicycle.
Beautiful Job!! Brings tears to my eyes. I had a Tange aero shaped tubing frame set build with DA AX group back in 1988 but it was stolen from my garage. It was bittersweet watching this video...Enjoy the bike well!!
Pjw
Thank you for your support, I am sorry for your loss, unfortunately it happens. Greetings from the Czech Republic.
Bummer. it got stolen. I still have my MIYATA Pro Aero from 1981.
A well detailed assembly of beautiful parts I on vintage bike, I like your video good job👍from Philippines
Thank you very much.
Very nice build 👍
Thank you very much friend.
Almost a year since I last commented, and wanted to give a quick update on my brakes. On my Pro Miyata, I had previously replaced the AX brake levers with a pair of Aero Gran Compe levers. Since the last time I commented, I have reinstalled the original Dure-Ace AX levers and at the same time, replaced the original brake pads that were getting very hard with Koolstop pads. The braking performance is now much better than before, even with the older AX levers. I did this at the same time that I reinstalled the original Dura-Ace handlebars with internal routing, so now it is 100% all Dura-Ace AX groupset. My Team Miyata is not 100% Dura-Ace EX as the EX levers were non-aero and I much prefer the 7400 series (and aero look) levers, even though I have a NOS EX set. However, what I am doing at the moment is having a set of late Dura-Ace levers from the early 2000s (I believe they are the last model of brake-only levers) slotted and pantographed to replicate the Dura-Ace EX levers, using my NOS set as a template. Other than that, the bike is a full Dura-Ace EX groupset, except for the handlebars. Those handlebars are AX as Shimano, as far as I can tell, did not make handlebars for the EX group, only AX.
Excellent bike.
I have a 1981 MIYATA PRO AERO which I bought new in 1982. .. very rare.. over the years much modified mostly with Suntour Superb Components.
Excellent video, beautiful bike.
I have a 1981 MIYATA AERO PRO which I bought new.
Miyata aero pro ... that's a completely different level! Thanks for your support and enjoy your bike.
I'm a professional mechanic and I can say your work is very good.
TRUE STORY:
I love Team Miyata race bikes from the late 70s early 90s because I became a professional Cat-1 racer on a blue & gold Koga Miata team replica with all Shimano DuraAce AX. I used to run ARAYA Tita-Ace Titanium rims with large 700 x 27c Clement del Mundo tubulars. I also used to speed balance my wheels just like a motorcycle or car and rode on large 27c tubulars which was my key secret to being one of the fastest Cat-1 descender's in So Calif USCF district.
Problem was my super expensive ARAYA Tita Ace rims kept developing hairline cracks around the spoke holes after a month of training and racing. So I kept taking them back to Araya's US office in Glendale California as they guaranteed them. One day a small group of Japanese from Araya & Shimano came to my bike shop and gave me a case of Araya Tita Ace rims and asked me if I could help them solve the hairline cracking problem.
About a week later my friend and road bike customer came to my shop, who at the time worked at the near by Burbank Lockheed secret Skunk works. He was in charge of the SR Black Bird's titanium skin maintenance. So I showed him my titanium hair line cracked rim and asked him why do they keep cracking at the spoke eyelets. In less then 3 seconds he figured it out... He told me Araya made a big mistake using Galvanized steel spoke eyelets on titanium as both cause a chemical reaction which causes the Titanium to crack.
About week later a van shows up with an other group of Japanese engineers including the president of Shimano USA all asking if I found anything on why their rims cracking? They were shocked by the news I gave them. They quickly went into a huddle outside my shop and were talking pretty loud in Japanese about the situation. After about 10 minutes they came back into my shop and offered me a Job on the spot to work for them. I said yes... A week later I shut down my shop and two weeks later I was in Japan at the Shimano main office. For three years I ended up going back and forth to Japan almost every other month. I was in seventh heaven and eventually I married the secretary of Shimano's US president, Mr Ken Fujimura. I also got to know Mr. Miyata pretty well, he was a lot of fun to be around with especially when he used to come to the US. He had the habit of wrecking rental cars. So yes, this all delightfully happened to me.
Your story is spectacular! And I am even more pleased with your praise, thank you very much and I will be happy to read your life stories and advice. In the former communist Czechoslovakia, we had very few opportunities to meet top cycling equipment in the 1980s. That's why now I'm building bikes that I couldn't have then and I'm trying them out. Thank you very much for your comment and I will read your story several more times…
@@OnRoadVintageBikes Thank you and you are welcome. I would love to meet you some day, here is a little bit of my background, just Google "Dan Sotelo onZa". I would like to get in contact with you somehow, but I don't know how to navigate on TH-cam, please advise how I can contact you. TKS Dan
i wanted one of those bikes when i was younger. what a great build and its good seeing the attention to detail
Thank you very much friend.
The frame - by Miyata Japan- with Ishiwata tubing drawn to their specs. were very good frames. Very well designed, fabricated. Exceptional balance, handling.
Back in the early 80's, I had a friend who had a Team Miyata with Dura Ace AX, (6 speed) with those Dyno Drive pedals. .People I ride with, call my bikes "Vintage", as a joke. Two of them have Dura Ace 7700 (one of them with the dreaded 7700 bottom bracket, and another bike with Dura Ace 7800. One of the old ones, still has a Dura Ace 1" headset and the Dura Ace seatpost.
Thanks for watching the video.
Top work..Top miyata...Top Cat !!
Thank you very much!
What a beauty.
Thank you very much for the watching.
hermoso video! the hubs are so thinny!
Thank you.
You can see the quality of the components is amazing. It must be very expensive. Nice bike by the way.
Nádherné komponenty a opäť super zvládnutá práca😉👍👍👍👍👍
Děkuji, tato sada je opravdu jako zjevení. Nic není jako dřív. A dokonce to funguje.
@@OnRoadVintageBikes
Chcel by som sa opýtať,kde sa dá kúpiť takáto sada?
@@marcelvargosko4244 shanel jsem ji asi dva roky po celem svete
@@OnRoadVintageBikes Tak to teda bola výdrž 😉👍,ale stálo to za to👍
Another great build, watching this is so satisfaying. Great Job !
Thank you very , very much!
Good job. Congratulation.
Thank you very much.
Another great build
Love the tic-tac ball bearings :)
Thank you Mike, Tic Tac produces the best ball bearings!
another first rate job :-)
I wish I had the energy to finish my 1983 Major Nichols. One day, one day!!
Thank you very much. Just start, then it's definitely fun!
Wow! You did it again. Your videos just keep getting better and better. Campagnolo made their center pull brakes a few years later. But I think I prefer the Shimano. Everybody used center pull brakes in the 60's. That changed with Eddy Merckx.
Thank you man!
the dura ace ax was short lived but very nice restoration job👍
Yes 7300, was a misunderstood and very wild set in its time, everything was different.
The kitty was my favorite part
My cat, thank you for your support.
I needed to learn a whole new set of skills with the AX components, everything about them is different. What took you just a few seconds to thread the front derailleur cable took me much much much longer than that. Nice video, thanks.
Thank you very much for watching. I've actually tried it a few times, AX components are really a revelation. I love them.
beautiful
@@ziliestarrive Thank you!
Loved watched this being built up, takes me back to a time when we'd fitted dozens of AX groupsets to frames, though being in the UK, the Koga Miyata frame was one of the hardest to get hold of, most 'off the shelf' frames came with a gear cable stop either on the bottom or top of the chainstay tube, this caused headaches but several frame manufacturers started to make the frames with suitable placed gear cable guides.
Don't get offended by my reply ?
Pretty surprised you didn't use the correct headset spanners ?
Shimano AX friction gear levers should be devoid of any such grease on all the moving friction parts, greased up washers/friction areas will only lead to the levers slipping backwards, only the threaded bolt should have a light coat of grease, my advice here is to take the levers off & fully clean the friction parts, re-assemble, levers will be far stiffer and won't slip.
I wouldn't have fitted the DA 7400 seat post, yes it's the same shape but the later text makes me cringe when fitted with AX & EX components.
Shame you couldn't find a DA AX handlebar stem - DA AX chainset - DA AX pedals - DA AX brake levers, though finding decent DA AX components isn't easy to come by and the prices can be crazy.
You've put the brake levers on the wrong sides of the bars ? Shimano designed levers that the cables run on the outside of the bars being encased in the foam covers, giving it a slight aircraft wing profile, I suppose no harm is done fitting them the way you have though.
The clear plastic AX headset cover ? All that grease you spreaded over the top and inside the head steerer! The grease will eventually go mucky and the cover will look a right mess when you look at it, what you should have done is slid the plastic cover right up to the top of the stem, using a elastic band to hold it up out the way, then grease the inside of the steerer tube, insert the stem, set to correct height, clean away all excess grease, then push the AX cover over the headset...Voila! A clean headset :-)
If you need to get the AX cover off in the near future... use a hairdryer and warm up the plastic cover, rotating it as you warm it, making it go like rubber, then it just pops off, I've seen newbies wreck AX covers by putting a screwdriver under the bottom, then trying to lift it, usually results in a ripped cover & marked headset :-(
If the brake blocks are still genuine Shimano, then they'd have gone hard, giving you less braking force, there is a company now making replacement blocks for the AX brakes, these are much better than Shimano, they are called 'Kool Stop'.
Thank-you for making this video, enjoy the great looking bike and most importantly...Ride it.
Thank you for the ideas, honestly I built DA Ax for the first time, but with love!
@@OnRoadVintageBikes Yes you built it care, this shows on your other great videos as well, I see there's 4 'dislikes' now ? I can't understand why the dislikes unless they are just jealous! Carry on with the great work.
Thanks for the support . I didn't know the brake levers had an outside lead. I thought someone had switched lever hoods in the last 40 years, so I put them back..:-)
Good job.❤ We share hobby.
Thank you for your support.
top meu amigo a bike fico linda parabéns até a próxima...
Muito obrigado, meu amigo.
A bicicleta ficou linda e o seu trabalho excepcional. 👏🏼🇧🇷
Muito obrigado pelo apoio, meu amigo.
Cool job buddy 👍
Thank you friend!
I remember when AX came out, the aero brake levers looked very odd! Hidden cables became standard a few years later.
Thanks for watching
What a beautiful restoration! Too bad it’s not a full Dura-Ace. And I assume you sell the bikes after being finished?
Anyhow, loved this video very much! It’s one of my favorite classic KM.
Thank you for your support. Most of the bikes I make and are 61-63cm I make for myself in my mini collection...
@@OnRoadVintageBikes That’s a huge size 61-63. Well, if you ever restore a 58 full pro, full dura-ace and prepare it for sale, just let me know. And I’ll keep following you on this channel! Love your craftsmanship ☺️☺️
@@joopm.9812 Deal!
Bearing balls in the Tic Tac box!!! HAHAHAHA It's special flavoured Tic Tac only for Chuck Norris!
Hi, thanks for the video. Do you remember which tyres you used in this restoration? Thanks
Thank you very much. Vittoria rally.
The 'Ko' in the Koga name is from Kowalick. She was the Czech wife of 'Ga' which stands for the family name Gaastra. So it's KowalickGaastra - Miyata. So the bike is Czech, Dutch and Japanese. Miss Kowalick did the administration of the company.
Great bikes, until the 1995 modelyear imho. But that's from a mtb point of view.
Thank you for the interesting information.
Na tom bicykli ma fascinoval ten vysoký rám a súprava radenia
Děkuji za sledování videa. Rám je 62cm, mám ho pro sebe. Ta krabička, s novým ale 40 let starým řazením, je opravdu kouzelná.
nice, where did You get the stickers?
Thank you , bicycledecals.net
Mantap, bagus 👍👍👍👍
Thank you very much
Přesně tento odstín rámu mám na Fáčku. I místo metly tam mám jen třpytky. Na sluníčku je to super. Bohužel, ale tyto komponenty tam nemám. 😂
Děkuji za sledování videa. Barva je kràsná....
🤗🤗🤗hi you,i come to VietNam.
Hello from the Czech Republic.
こんなデュラあるんだ
I had exactly the same bike in 1983, frame has a very bad geometry, when sprinting the rear wheel breaks out, looks where great for the era but not only good memories.
I promise I won't sprint on it. Thank you for watching.
@@OnRoadVintageBikes You did a really great job conserving this iconic bicycle for the future, was great to watch and to take me back to my competitive cycling days, thank you.
@@johnb90nl I am very pleased, I am also returning to my youth with this.
Hi there, i don't manage to unscrew the crankset arm, the bolt gets loose for half turn and then locks again, do you know what the problem might be? Super nice restoration . CONGRaTS
Thanks for watching. Something is stuck, use the WD40 or something like that and put the bike on one side for a few hours and then take it from the inside of the crank and again for a few hours. Then try to loosen it up.
@@OnRoadVintageBikes It needed also a bit of conviction, I went harder on it and after another half turn it unlocked. 😜. Thanks
@@MrFarmaco Good work .
07:04 what do u call the plastic cover? where did u purchased ?
This cover is a must have for the Dura Ace Ax kit and I bought it on Ebay.
z kade zohnávaš kožené omotávky?
Na žádné kolo jsem nedával koźenou omotávku.
Koukám, že používáte v hlavovém složení jen věnečky. Já dávám pouze kuličky. Asi jsou ty věnečky praktičtější pak při rozborce. 💁♂️
Pokud jsou originál tak používám, do středu jen Campagnolo věnečky ostatní jsou špatně.
I love this bicycle and your restoration. I search for my collection a Koga Moyata Aero Pro full chrome with shimano Dura Ace AX in NOS condition, but this one is also very nice. Good job! Regards
Thank you friend! Compliments from you please me very much.
1 pouce bleu pour le chat
The cat is the owner of the house.
7:34 oh no..keep away from children. Dangerous candy
Thank you for the warning, you won't miss anything!
holy grail Miyata creme de la creme
Thank you very much.
Mňa by zaujímalo ako sa vymieňajú brzdové špalíky keď sa zoderú
Úplně normálně, ze spodu se povolí červík a vysunou se dozadu. Dokonce Kool Stop je pořád vyrábí.
♡♡♡♡
white handle tape would have look much better..
That's certainly true, but white doesn't last long...Thank you for watching.
я тоже храню шарики в упаковке от Tik-Tak )))
It is unbelievable. Such a frame and such a set... Your tic-tac is the icing on the cake ...
Děkuji Kubo.
Ste veľmi sikovný,funglovku sadu zohnat musela byt fakt fuška.mohli by ste mi prosím napísat meno(firmu)]kde vam restaurovali ram?Krasny bicykel gratulujem👍
Moc děkuji, jednotlivé sady sháním většinou po dílech po celém světě a dlouho. Je to jen spousta hledání a čištění a leštění. A to je to co mě baví...ten proces. Rámy mně lakuje Karel Chmelíř , najdete ho na FB. Ještě jednou děkuji za podporu.
Dneska jsem narazil na YT na nějakýho japonskýho týpka, kterej rozmontoval kompletně představec ax a je to složitý jak atomová elektrárna....
Tomu bych věřil, celá sada je tak trochu "jiná".
Amigo le quedo hermosa solo que las palancas de los shipters estan alrevez son para el otro lado
fantastic
Thank you.
Beautiful!
Thank you very much.
Super nice miyata.👍
I recently managed to purchase a bottle and basket of Dura Ace AX. It will be the icing on the cake. Thank you for your support.
Bellissima...
Thank you very much.
I have a couple questions about your restoration. Maybe you explain this in your native language but the chromed sections of your frame were there from the manufacturer, correct? My Miyata frames are in pretty good condition but I do have a couple chips of the paint in a couple of them that allow the chrome beneath to show through, mainly on the seat stays and front of the fork. My question about this is, was the chrome of a quality high enough to leave bare, or did you have to re-chrome those areas? My second question is where did you find that blue cable housing?
Thank you very much for watching, chrome was very nice under the original color.
I don't know if I'd risk it if I wanted to keep the original paint?
Otra magnífica restauración!!!
Dudo que exista algún mejor restaurador de bicicletas. Te felicito.
Gracias por tus vídeos.
Muchas, muchas gracias por su apoyo, amigo mío.
Something else I just remembered after watching your video for the 10th time, is those early AX brake levers on your build. I have these (in a light blue color) but I replaced them with a set of Aero Gran Comps on the Pro and a Dura Ace, 7400 series I believe on the Team. Those early AX levers were not very good and at the time, I was riding the bikes more than I do now and wanted to modernize the builds in the areas of braking and wheels. Still used the original AX and EX calipers though. For my wheels, I rebuilt with some silver Mavic CXP, 30s I believe, and then finally made them tubeless. I did save all the parts, so a future restoration could remove those improvements if someone wanted to take it back to period correct although the AGC levers are not too far off from period correct. I can tell you that I won't be changing anything.
The 7400 brake levers are the absolute top in their category and time, but in this video I tried to make the AX mystery set as original as possible.
Also the Shimano AX sponsored team I rode with had problems with the cranks cracking around the pedal hole. probably why Shimano reverted back to the standard size. And yes the brake levers were fragile
A few days ago I found some AX brakes in my roof space. I have a 1970’s Romet ex Polish Team bike that I want to restore. Plus a 1980’s Peugeot Anet with a weird seat pin clamp.
So you found the treasure! Brakes Dura Ace AX! Thank you for watching.
I think you put the shifters backwards 😊
I thought so too, but the holes for the end of the cable cannot be turned. Is it right. This whole group is set on its head against all customs.
Šťastných 3000 odberateľov 🥳🥳🥳
Děkuji mnohokrát!
How can you put a value on a bike like that? It's so unique it has to be worth a fortune. Thanks for sharing your experience with us.
I don't sell these bikes , I ride them sometimes. I do it for myself , for my memories, and most importantly, I enjoy it very much. Thank you for the support !
@@OnRoadVintageBikes I have a question for you. Excuse the length. Why do vintage cranksets gearing spec the double ring chainsets 42T-52T or 42T-53T. Modern chainsets are typically 34-50, 36-52, & 39-53. I just acquired a NOS Vintage Campagnolo Gran Sport crankset from 1985. The chainrings are 42-53 with a 116 BCD. There are 36T 116 BCD smaller chaingrings available for these cranks. In your opinion how well do you think a 36T-52T on this chainset would work since it doesn't have the modern pins and ramps? Was there a reason for the smaller gaps in teeth numbers on the older chainsets?
@@charlesmansplaining I don't think the RD were able to stretch the chain at the time, and also on bcd 144 smaller than 42z can't be put on, and 54 because the smallest cog were 13 at the time and later 12
@@charlesmansplaining 13 smallest on a freewheel.
Very nice restoration.Beautiful bike.
Thank you for watching.
@@OnRoadVintageBikes you should se my Dura ace Ax bike
Besser geht es nicht! Wieder eines gerettet DANKESCHÖN😂❤❤❤❤❤❤
Vielen Dank, ich habe versucht, mein Bestes zu geben.
@@OnRoadVintageBikes Versuch 100 % geglückt! Ich besitze ein Colnago Master von 1983 ca. 70000 KM gelaufen immer gut gewartet ist im neuwertigen Original Zustand! Ich liebe diese Räder!
Always fancied building a bike with this group set. Thanks for the video
Thank you for watching.
Long time no see.🤗
miyata was very famous and now in Japan they are producing some incredible rugs. with tange tubes.
In Korea, where I live, builders are making frames after completing the course, and keirin racing is still active. (It's a little different from track racing and get some high salary rather than olympic gold medals)
but…. I like french lugs~🙏 prugnat s4 long point + columbus SLX tubing I will make soon 👍
The AX series is as wonderful as it is a precious item~ absolutely .
thanks for making good movie
Thank you very much.