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Technical & Reference Section => Tech and Restoration => Topic started by: Avro on November 13, 2019, 07:17 PM

Title: 1980 Tange Hot Heart build.
Post by: Avro on November 13, 2019, 07:17 PM
It has been tricky on the BMX front of late; house move and new job (sort of) have rather got in the way. The move is complete now and I should be able to crack on. I do my own anodising but that is on hold while a new building is being erected at work in which I can set up my station; that should not hold things up too much as I did rush a few jobs before I had to pack it all up and move. Anyway, here is my latest build, a 1980 Tange Hot Heart. I did hesitate to post this build as it did feature quite recently in another guise but I like to contribute to the forum so here it is anyway.

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I have this JBM fold out catalogue from January 1982 and it never fails to inspire me.

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The Bobby Encinas Hot Heart has formed the basis of an earlier build I did with the Shimano Z2 twin speed system. This time I am more interested in the decals, not the Bobby Encinas No. 1 set but the Hot Heart decals on the down tube.

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I love them to bits and had to get them reproduced. I found other shots of the seat post tube and head tube decals and sent everything I had found out to Decals; he never disappoints.
In the meantime I got the fold out catalogue digitised, not least to avoid wearing out the original! It was then that I spotted some black smudges under the 'Tange (heart motif) Hot Heart text. I zoomed in and, ahhhh!, more detail revealed. Under the main text it reads, in black, 'Competition Racing   Frame & Fork'. I'd missed it, that said it would have been invisible on my black frame anyway. I does mean though that I will have to find another frame to wear the corrected decals  ;D

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I added a Tange Number 1 decal (the green tubing decal) as this is what is shown on the Bobby Encinas bike.

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I am nick-naming the bike 'Liquorice Allsort' as the primary colours and dominant black frame remind of them. I am super pleased with how it is coming on, it should be a beauty!
More to come soon, thanks for reading.
Title: 1980 Tange Hot Heart build.
Post by: monkian on November 13, 2019, 10:24 PM
Great idea Peter. Should be a fun build. So was this my old frame-set I sold to Matt?
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on November 14, 2019, 06:22 PM
Yes Paul the frame is one and the same, it is why I have hesitated to post about it here given it featured so recently.
If you remember I asked about the frame once I saw that you were selling parts from your build.
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on November 14, 2019, 06:43 PM
Lovely period advert for a lovely headset:

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I have a few cracking headsets and this bike is getting one of them, a Tange MX3, or at least a lookie-likie, perhaps YST? Whatever the manufacturer I really like these colour banded cups; a simple way to add accents and detail.

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...another lovely ad...

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I picked the forks up at MK a couple of years ago, new old stock and minty. I was particularly looking for TX500's so I was made up. They did not break the bank either.

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I had hoped to top it off with a black Tange head lock but I seem to have neglected to find one. I do have a couple of these Tioga Taskforce locks so one will have to do for now. I am going to search for a black Tange item as I think it will look better and be more consistent with the theme. Boyd has a load of the locknuts but no black, typical. I may have to re-anodise one if my search proves fruitless.

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It is coming on nicely and I hope to make more progress this weekend.
Thanks for looking.
Title: Re: 1980 Tange Hot Heart build.
Post by: Hedsta on November 14, 2019, 07:18 PM
Thats gonna look tops when its done bro...

Sourcing some of those parts might be a challenge but isnt that the whole point?

Gonna keep my eye on this

Congrats on the new house as well mate - hope yr settled in okay.

I f*cking hate moving, lol  :tickedoff: :tickedoff:
Title: Re: 1980 Tange Hot Heart build.
Post by: monkian on November 14, 2019, 07:38 PM
All good Peter. It’s nice to see it still getting some love
Title: Re: 1980 Tange Hot Heart build.
Post by: Mikku on November 14, 2019, 10:54 PM
Looking forward to this one Peter! :daumenhoch:

Sourcing some of those parts might be a challenge but isnt that the whole point?

Aka the thrill of the chase!! :D
Title: Re: 1980 Tange Hot Heart build.
Post by: Swivel on November 15, 2019, 09:28 AM
Nice! I've never seen a Hot Heart with a gusset like this, only seen the ones with the HEART in it, cool. Looking forward to seeing this.  :coolsmiley:
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on November 20, 2019, 04:53 PM
I got these Shimano DX cranks some time ago and they came to me re-anodised in a shade of blue. As I need them to be black it was time to set about the laborious task of stripping, polishing and anodising them; I have detailled this elsewhere on this site and beyond. The anodising came out crackerjack, not perfect but I am improving every time.

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Pretty good looking bottom bracket!

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There are a lot of parts to a Shimano DX crank set-up but it all comes together so well and it is so integrated. I think the black makes it all look almost monolithic.

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Moving forward nicely now, although things may slow down as I am planning on anodising a set of rims for this bike if I fail to find anything suitable in the meantime.

[attachment=3]
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on November 20, 2019, 05:01 PM
...this is a Nitto MX-2 stem, a repop. I did not get lucky tracking down an og stem so thought I would give these a go. Bought from Boydsbikes at MK a couple of years ago, I think they are great. I know some frown on repop but if you are going to fit repop at least make it decent repop; and this stem is way better than just decent!

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Back in the day this stem was also homogenised into the Shimano DX family with a simple change to the sticker, Delcals sorted that little problem out for me.

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The seat post clamp is Tange, a bit beat up but very nice none-the-less. I did look at a gold one but it did not work to my eyes.

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More to come...

Title: Re: 1980 Tange Hot Heart build.
Post by: Ady on November 20, 2019, 06:24 PM
Great build .
And loving your YouTube channel too with a big thumbs up from me.. fistblump
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on November 20, 2019, 06:46 PM
Thank you! explosion
Title: Re: 1980 Tange Hot Heart build.
Post by: monkian on November 21, 2019, 11:14 AM
Nice work on the cranks Peter. They’re a bit special
Title: Re: 1980 Tange Hot Heart build.
Post by: Taipan on November 21, 2019, 01:10 PM
Really like this build  :4_17_5:  great work Peter  :daumenhoch:
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on December 23, 2019, 05:06 PM
Progress has been made.
I have no idea as to the date of these Strong seatposts, but I think they are cracking. All I need to do is give one of them a light sand, etch prime and rattle can black, not forgetting to get Delcals to reproduce the decal for me of course.

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The DX pedals I have had for a few years and I started the restoration a long time ago. It took quite a bit of work to get them to the standard you see here. It is always a balance when restoring parts as you inevitably sacrifice material. I do not restore parts for the sake of it and I never take it lightly. If I was lucky enough to have a complete survivor then I would not touch a thing on it, but I have never had such luck. I also question the rationale behind 'building a survivor', it make little sense to me but each to there own, there is room for everyone. There is a Facebook group concerned with 'BMX Parts Restoration', it should be called '...what can I over polish today and obliterate all authenticity', I struggle to find room for them :knuppel2:!

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Although it is just a rattle can job I am pleased. Maybe I could have used a high build primer but I am never looking to to make the parts look new or perfect; that is not my thing at all. The finish would definately have been better if the workshop was not a few degrees above freezing!

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Wanted: Shimano Aero frame
Title: Re: 1980 Tange Hot Heart build.
Post by: BMX1973 on December 23, 2019, 05:27 PM
You are putting a lot of time and effort into that build. Its starting to look Rad  :daumenhoch:

Looking at that info leaflet at the top of the thread, just shows how high end these bike were.  :)
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on December 23, 2019, 05:32 PM
...I previously fitted a Tioga Taskforce head lock, a chrome one, but I really wanted a black Tange LP440 but failed to find one at a reasonable price. I have not been able to set up my anodising station yet so a compromise was needed. I had this Akibo lock nut on watch for a short while thinking it would do just fine. A fellow radster did message me about it suggesting it would work well so I was encouraged. I knew Monkian (member on here also) is building an Akibo so I checked to see if he was interested in it before I pulled the trigger. I prefer it to the Tioga so all is good.

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I may have been a bit hasty fitting these minty Tioga V bars. They might be better placed on another build I have waiting. I do have a couple of other options, a set of Laserbars and a set of bars that are identical to Laserbars, and I mean identical, except that the crossbar is 7/8 (20mm) and not 15/16 (24mm). They were sold to me as being kuwahara Nova.
Anyway, they are fitted for the moment. They are nicely stamped Tioga and 'Alps Japan', the maker.

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Looking good now!

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Wanted: Shimano Aero frame

   
Title: Re: 1980 Tange Hot Heart build.
Post by: Ady on December 23, 2019, 10:57 PM
Once again loving this.. :smitten:
It’s mad to think those dx cranks was available around 1982 , so ahead of there time with the design .
Title: Re: 1980 Tange Hot Heart build.
Post by: Glynnyboy on December 24, 2019, 12:00 AM
This is looking really sweet, great job .  fistblump
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on December 24, 2019, 12:43 AM
Once again loving this.. :smitten:
It’s mad to think those dx cranks was available around 1982 , so ahead of there time with the design .

..this set is dated 1980. I think this is when production started (more on this another time).
Title: Re: 1980 Tange Hot Heart build.
Post by: griff on December 24, 2019, 01:01 PM
Great thread Peter - love how this is coming together (& great job on the crank!)
Title: Re: 1980 Tange Hot Heart build.
Post by: Taipan on December 24, 2019, 04:00 PM
Great build thread  :daumenhoch:  I'd be more than happy with just a set of those DX cranks but they go for silly money now  :-\
Title: Re: 1980 Tange Hot Heart build.
Post by: bobafett on January 06, 2020, 10:10 PM
Great build. Great thread  fistblump 8)
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on February 15, 2020, 05:14 PM
Progress has been slow. Work has been terrifically busy not least as we start to gear up for the spring. The recent poor weather has relaxed things a little so I have been able to advance the project a little.

I have decided to replace the Tioga V bars with a pair of Kuwahara bars, sold to me a Nova (they have an identical shape to Laserbars; identical height, width and sweep but there are differences in knurling and the diameter of the crossbar). They are rider condition but not so that they compromise the build in any way. I love wide lairy bars

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I bit of fettling of the Shimano Tourney DX brakes...

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...it was going to get some OGK grips but as they were motorcycle ones I thought I would rather use these Tange ones...

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PTO!


Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on February 15, 2020, 05:20 PM
...this is the Shimano DX chainwheel I anodised with the cranks, it came out perfect and first time!

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[attachment=1]

Some time ago I documented the restoration of a couple of Elina Lightning Bolt seats on this forum (http://www.radbmx.co.uk/forum/index.php/topic,190557.msg1915140.html#msg1915140) and at last I have a chance to use the black one. These are so dear now I doubt I will be able to afford another! I do have a sun damaged red one which I bought at MK a couple of years ago, I think that will be my last!

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Wheels next and they need a lot of work, more soon I hope.

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Title: Re: 1980 Tange Hot Heart build.
Post by: bobafett on February 15, 2020, 09:35 PM
Shaping up nicely  :coolsmiley:
Title: Re: 1980 Tange Hot Heart build.
Post by: monkian on February 15, 2020, 10:51 PM
Looking good Peter. Bars look like they could be Hsin Lung. Joffy did a nice comparison thread on here a few years ago against some Laserbars that might be worth a look. I couldn’t find it on Tapatalk but I kept these pics from it:

(https://uploads.tapatalk-cdn.com/20200215/9a788b7d07aa33a378186e0c5f50d5cb.jpg)

(https://uploads.tapatalk-cdn.com/20200215/e840c08b6c544cd0f3cb7088405c65d5.jpg)

(https://uploads.tapatalk-cdn.com/20200215/5108aa605fecbea11b4d9e05b6f498c2.jpg)
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on February 16, 2020, 01:53 PM
Struggling to find the thread but I will persevere.
The bars really are dead ringers for Laserbars except they have no knurling at all and the crossbar is 5/8" rather than 3/4".
Thanks for the tip.

This thread seems to confirm a Nova origin:
http://www.radbmx.co.uk/forum/index.php/topic,161045.msg1607034.html#msg1607034
Title: Re: 1980 Tange Hot Heart build.
Post by: monkian on February 16, 2020, 02:08 PM
Ah no worries, thought they were knurled from your pic but must just be fitting marks.
Title: Re: 1980 Tange Hot Heart build.
Post by: Mikku on February 17, 2020, 12:09 AM
Am loving this thread! All my builds take time, but I put nowhere near the amount of work into them that you do. That's borne out by the results - top work so far, mate. Looking forward to seeing the wheelset! :daumenhoch:
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on April 13, 2020, 05:42 PM
More progress has been made, although it is painfully slow.
I bought these wheels off ebay, Ukai box rims on high flange Sansin hubs. Very scruffy but had potential.

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The idea was to strip them down, redress the shiney sides and relace to a set of lovely DX hubs I have.

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The rims took a bit of work but they responded well. I take sanding with wet and dry to another level! I used to follow a clock maker on You Tube called Clickspring, in particular his recreation of the Antikythera Mechanism. He takes sanding, polishing and metal finishing to an art form. I never grumble about sanding after see his work! I recommend giving his Antikythera series a watch, it is incredibly relaxing.

The hubs that were removed were in amazing cosmetic condition and a good find.

The spokes are Asahi, too long for this application so I had to cut them to size and rethread. Calculating spoke lengths is easy in theory but in practice it never seems to to work out perfectly for me, very frustrating. It did not go too badly this time but is not a job I like. Having to cut my own spokes did allow me to try out my new thread machine which ia dream to use, it is so efficient and perfect! It gets a bit old after 50 or so spokes but none-the-less.

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The shiney sides turned out lovely so time to build the wheels. I decided on 4x as I have not tried building it yet, it looks very conjested at the hub and I still don't like it. That said I have bikes here with 4x so I should bother too much. The wheels turned out lovely and I am itching to get them on the bike. I was aiming to get the bike finished in time for the South Coast BMX event, which I will, but I guess that event is under threat given the current situation. I was even planning on showing it, my bikes have always done very poorly in BOTM but you never know!

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Title: Re: 1980 Tange Hot Heart build.
Post by: Picklez on April 13, 2020, 07:47 PM
Great build thread, and top skills at hand  :4_17_5:

Loving the work, and bike's shaping up nicely  :popcorn:
Title: Re: 1980 Tange Hot Heart build.
Post by: bobafett on April 14, 2020, 03:20 AM
Nice resto job on the wheels  :coolsmiley:
Title: Re: 1980 Tange Hot Heart build.
Post by: Mikku on April 14, 2020, 03:37 AM
Great work mate! & definitely get this entered into BOTM as and when done! :daumenhoch:
Title: Re: 1980 Tange Hot Heart build.
Post by: Avro on June 28, 2020, 03:03 PM
...A few changes and finially done. I was always aiming to get the bike done for South Coast Old School Weekend, which I did, but the event is cancelled so I could have taken even longer over it!

I made a few changes, I had to make the correction to the decals and had Delcals add the script 'COMPETITION RACING  FRAME & FORK'; it had to be done. I also got them reduced in size which has also worked a treat.

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A chap on here very kindly tracked down a black LP440 lock nut for me, I messed around with Tioga and Akibo units but I always wanted it to be Tange:

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So here is the finished bike, this is my favourite by some way. Lots of things came together, restoration work, parts finds and a good deal of patience and good fortune.

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More here if interested:
https://www.youtube.com/channel/UCqFWt9Co_LIXNlqJXr0Fx9g
Title: Re: 1980 Tange Hot Heart build.
Post by: Midschoolfool on June 28, 2020, 04:07 PM
Beautiful work as always Avvers.
Title: Re: 1980 Tange Hot Heart build.
Post by: Picklez on June 28, 2020, 05:13 PM
Wow, love it Peter. That's a serious parts selection too, very nice  :4_17_5:
Title: Re: 1980 Tange Hot Heart build.
Post by: Chilli Rinse on June 28, 2020, 05:28 PM
 "wantit" How did I miss this build thread ! That is one stunning machine born from the result of some great work Peter.  :bow:
 What a cracker  :smitten:
Title: Re: 1980 Tange Hot Heart build.
Post by: Swivel on June 28, 2020, 06:49 PM
Stunning mate, awesome 👍
Title: Re: 1980 Tange Hot Heart build.
Post by: bobafett on June 29, 2020, 04:01 AM

Really enjoyed this thread as it progressed and it's great to see her finally finished - great build mate, a credit to you  :coolsmiley:

 :daumenhoch:
Title: Re: 1980 Tange Hot Heart build.
Post by: Taipan on June 29, 2020, 01:54 PM
Great thread  :daumenhoch: and a fantastic looking bike at the end of it  "wantit" some very expensive and lovely parts on it fella
that's a cracker!  :4_17_5:
Title: Re: 1980 Tange Hot Heart build.
Post by: Picklez on June 29, 2020, 09:54 PM
Keep coming back to have a look at this one, she is sexy, and great attention to detail on all that resto work  :4_17_5:
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