RADBMX.CO.UK
Technical & Reference Section => Tech and Restoration => Topic started by: snoopy72 on March 14, 2015, 08:17 AM
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I have now sold a few parts from the fatgoose build and going with Team spec, these are some of the parts I have collected for the revamp.
I found a very original double clamp stem with toothed clamps that needs a little restore but don't have any pics yet until it arrives.
I will have one set of these parts anodised in natural silver
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/59_zpsftolvla6.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/59_zpsftolvla6.jpg.html)
top nut washer and adjusting cone.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/78_zpsyoiixhx6.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/78_zpsyoiixhx6.jpg.html)
Used grips but nice condition.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/_57_zps4apeths1.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/_57_zps4apeths1.jpg.html)
79 stainless mongoose seat post.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/3tF2TP7l_zpsli47i6ug.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/3tF2TP7l_zpsli47i6ug.jpg.html)
Team spec Race INC bars.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/DSC_0096_zpstgzbgsnq.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/DSC_0096_zpstgzbgsnq.jpg.html)
smooth clamps for alloy bars.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/KGrHqIOKo0FIkco5UqBSPlsZwKNQ60_57_zpsb2dk8qz5.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/KGrHqIOKo0FIkco5UqBSPlsZwKNQ60_57_zpsb2dk8qz5.jpg.html)
Shimano 39t to be anodised natural silver.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/P1020343_zpsleusqai8.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/P1020343_zpsleusqai8.jpg.html)
Nos seat clamp.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/clamp%201_zpsllapioxd.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/clamp%201_zpsllapioxd.jpg.html)
Nos MKS BM-1's.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/012_copy762_lg_zpsifomqdvy.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/012_copy762_lg_zpsifomqdvy.jpg.html)
First Gen Team decals courtesy of bmxproducts.com
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/1369605402806845488024_zpsxegfldto.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/1369605402806845488024_zpsxegfldto.jpg.html)
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2" Bar extenders to turn the Race inc bars from 23" to 27"
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg.html)
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2" Bar extenders to turn the Race inc bars from 23" to 27"
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg.html)
where did you get the bar extenders from mate ?
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Saw this reminded me of yours
(http://tapatalk.imageshack.com/v2/15/03/20/89f960feccc2ddd81adb6e630d093f62.jpg)
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2" Bar extenders to turn the Race inc bars from 23" to 27"
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg.html)
where did you get the bar extenders from mate ?
Looking at the website address cleverly hidden in the middle of the image, they might have come from here :teef: https://www.blowsion.com/-blowsion-handlebar-extensions
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2" Bar extenders to turn the Race inc bars from 23" to 27"
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg.html)
where did you get the bar extenders from mate ?
Looking at the website address cleverly hidden in the middle of the image, they might have come from here :teef: https://www.blowsion.com/-blowsion-handlebar-extensions
Miss Marple has got nothing on you Griffster , top detective work ! :D
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2" Bar extenders to turn the Race inc bars from 23" to 27"
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/0002487_blowsion-handlebar-extensions_400_zpsoxkuyg3g.jpg.html)
where did you get the bar extenders from mate ?
Looking at the website address cleverly hidden in the middle of the image, they might have come from here :teef: https://www.blowsion.com/-blowsion-handlebar-extensions
Miss Marple has got nothing on you Griffster , top detective work ! :D
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If you order these from Blowsion they estimate the postage at $97, I contacted them and they said continue with the order and that is only estimated and miles out , they will take out the postage once sent but it will be actual postage not the ridiculous estimate :daumenhoch:
They are also designed to cut down in the grooves for a desired length., they are for alloy bars which have a smaller inside diameter to steel bars.if you have steel bars then these are the ones you need below but will only give an extra 1 3/4" total.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/thBC95HEJI_zps5d3235c2.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/thBC95HEJI_zps5d3235c2.jpg.html)
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Might be adding 2 of these clamps below, one on the downtube and one on the seatmast tube, the 2 lower picture clamps are for each side of the bb and then link them with 4 alloy braces
Anodised blue of course :coolsmiley:
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/KGrHqJqFGFmouCBR4vlp6w60_57_zpsxl1erofz.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/KGrHqJqFGFmouCBR4vlp6w60_57_zpsxl1erofz.jpg.html)
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/flc_zpsrks08jsz.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/flc_zpsrks08jsz.jpg.html)
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:popcorn:
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Hasta la vista baby !
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(http://i1293.photobucket.com/albums/b588/hooliganbbb72/IMG_5608_zpssubg2hcs.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/IMG_5608_zpssubg2hcs.jpg.html)
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Nice parts there. :)
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Is the flex that bad?
Don't do it for looks.
MM
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I'm no engineer but I would have thought the blue sections would need a 3rd arm to form a triangle to impart any sort of rigidity ???
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I would say it has normal amounts of frame flex, my 1980 supergoose had quite a bit infact replicating a gate start it's just looking at it the bb is along way away from the tubing, don't want to have a case of power stroke, not giving any warning and breaking the frame , the weakest parts of the frame will be the welds where the 2 tubes fit to the bb.
Seeing as it has such a nice nickel finish and the frame breaking is repairable but will destroy the plating, so do I do it as a precaution or leave it alone ?
It may also go the other way in making it break at those points because i've clamped them to the bb, if anyone comes up with a solution or just to leave well alone, i'm all ears, I know it looks a bit of an after thought but it saves adding more steel to the frame and it will still look like a mongoose underneath it all.
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I'm no engineer but I would have thought the blue sections would need a 3rd arm to form a triangle to impart any sort of rigidity ???
The small gusset should cover that ok
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Saw this reminded me of yours
(http://tapatalk.imageshack.com/v2/15/03/20/89f960feccc2ddd81adb6e630d093f62.jpg)
The problem with this design is that your heels will smack the bottom stay and if you put your foot back in it's natural position it could be pretty painful on the up stroke .
Also it needed bracing the top and bottom stays together where the outside circumference of the rear wheel is.
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The weakest point won't necessarily be at the weld especially in an old frame, it could crack 2-3 inches up depending on where the greatest amount of stress from the torque of the pedal stroke is, then there'd be other factors such as corrosion internally, so I don't reckon that modification will necessarily stop it.
A brace at either side of the bottom bracket to the seat tube would be what I'd go for in addition to the gusset if you are going to go down that route, that would cover stress caused by front to back, up and down and side to side movement.
I'd be inclined to leave it alone, if it breaks get it fixed, definitely wouldn't be drilling holes in it.
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There's no drilling, it's all lightweight alloy clamps, sorry the sketch does look like i've drilled through the frame .
The 2 clamps are these using longer bolts for the rose joints. It's all removable and adjustable
This will be mirrored on the non drive side, this sketch is drive side only.
Would it make it stronger of worse ? you could argue that it could now be weak just the other sides of the clamps and fracture their. A very quick sitting on the bike version below.
It should cover front/back and up/down stress but it will still allow some side to side.
Might start looking like the Eiffel tower if i'm not careful :LolLolLolLol:
Most flex will be generated though the Dura ace cranks
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/KGrHqJqFGFmouCBR4vlp6w60_57_zpsxl1erofz.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/KGrHqJqFGFmouCBR4vlp6w60_57_zpsxl1erofz.jpg.html)
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/IMG_5609_zpsjgdw9vm8.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/IMG_5609_zpsjgdw9vm8.jpg.html)
Think Griff's pic sums it all up really :LolLolLolLol:
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/image_zpsrpqsaq2q.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/image_zpsrpqsaq2q.jpg.html)
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If I was going to have a brace between the seat tube and down tube I'd brace either side of the seat tube to the BB and possibly at the back.
Sketch on the back of an envelope.
(http://www.radbmx.co.uk/archive/albums/vv281/rodgy1970/017_zpsv4hvtqxi.jpg) (http://s692.photobucket.com/user/rodgy1970/media/017_zpsv4hvtqxi.jpg.html)
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I'm hopefully never going to have to get it welded.
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There is going to be a lot of side to side flex because of the wider BB, that's why I'd brace the sides too.
I'd reckon a gusset in the front will mean even more pressure on the sides.
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What about just the double brace from seatmast tube to bb, turning the large bracket clockwise inline with the downtube ?
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It would work but would you want that bolted to the frame :-\
How likely is it that it'll break?, suppose that depends on how often are you gonna ride it? how much abuse is it going to get? etc etc
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Rather than rose joint you mean ? rose joint will only stop direct pull and will have movement on the bearings, it's supposed to be good for a frame to have some flex, I have the alloy parts I could even go from the centre of the front gusset (spacing it inbetween witha machined piece of acetal and join with 2 pieces of alloy bar down to the bb brackets, it's knowing where is the best place to strengthen, it's not goin to be doing big jumps or anything like maybe the od wheelie if my back has the strength to raise the front
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Less Columbo more...
(http://media.tumblr.com/tumblr_maqo9oPxUZ1qzytg1.jpg)
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Less Columbo more...
(http://media.tumblr.com/tumblr_maqo9oPxUZ1qzytg1.jpg)
I stood on the toilet to hang a clock , slipped and hit my head on the sink and came up with this.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/IMG_5609_zpsjgdw9vm8.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/IMG_5609_zpsjgdw9vm8.jpg.html)
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/flux_capacitor_zps3lax1lc8.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/flux_capacitor_zps3lax1lc8.jpg.html)
I spoke to a frame builder last night , he said leave the frame as it is , braces will be like adding a band-aid, if it's going to break nothing will stop it.
For my riding it should last forever so enjoy it.
I'll take it out for long run when I get all the team parts bolted to it.
If it breaks this will be the face , more worried about Allenchromes lovely nickel finish.
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/Back%20to%20the%20Future%20Doc%20Brown_zpsmvwnajxi.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/Back%20to%20the%20Future%20Doc%20Brown_zpsmvwnajxi.jpg.html)
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I agree with what you say about the frame needing to have a certain amount of flex.
I also agree with the frame builder, if it's going to break nothing will stop it.
I reckon it's time to stop worrying and look start looking forward to the finished product. :daumenhoch:
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I agree with what you say about the frame needing to have a certain amount of flex.
I also agree with the frame builder, if it's going to break nothing will stop it.
I reckon it's time to stop worrying and look start looking forward to the finished product. :daumenhoch:
Thanks for you input :daumenhoch:
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I agree with what you say about the frame needing to have a certain amount of flex.
I also agree with the frame builder, if it's going to break nothing will stop it.
I reckon it's time to stop worrying and look start looking forward to the finished product. :daumenhoch:
Thanks for you input :daumenhoch:
The last sentence just about made sense. :D
You got what I meant anyways :daumenhoch:
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You are never gonna ride it in anger, don't worry, when I was a lad, loads of fat kids had grifters and never broke `em!!
MM
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You are never gonna ride it in anger, don't worry, when I was a lad, loads of fat kids had grifters and never broke `em!!
MM
Your right mate and they had welding resembling the bottom of a bird cage.
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Some progress today, cleaned the OG grips, they were really dirty, with vanish gold, one scoop in warm water and an electric tooth and they came up like new. :daumenhoch: Afterwards made sure to fit a new head to the missus's tooth brush :LolLolLolLol:
Fitted silver chain ring, MKS BM-1's, silver lever parts to match the original shimano lever, mongoose gold stem fitted, headset fitted, also seat post , clamp and 79 prism decals fitted.
Widened the bars from 23" to 26"
Just need to bleed the brake, fit shimano dura ace cable clamps and do a small adjustment to the rear wheel/chain alignment.(http://i1293.photobucket.com/albums/b588/hooliganbbb72/IMG_5941_zpsxawq105i.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/IMG_5941_zpsxawq105i.jpg.html)
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/IMG_5940_zpsntyaqcrt.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/IMG_5940_zpsntyaqcrt.jpg.html)
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/IMG_5939_zpsx0e5gffl.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/IMG_5939_zpsx0e5gffl.jpg.html)
(http://i1293.photobucket.com/albums/b588/hooliganbbb72/IMG_5942_zpsllefu7s4.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/IMG_5942_zpsllefu7s4.jpg.html)
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Looks like it's showtime
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I was tempted to have the wheel rims anodised blue but that would mean stripping the wheels again, I may do this at a later date.
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loving that!! looks superb! :daumenhoch:
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(http://i1293.photobucket.com/albums/b588/hooliganbbb72/IMG_5938_zps9zqwxgbb.jpg) (http://s1293.photobucket.com/user/hooliganbbb72/media/IMG_5938_zps9zqwxgbb.jpg.html)
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Totally bonkers but totally cool :coolsmiley:
Love it John :smitten:
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Love this bike; great work :daumenhoch: