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Post your Centurion Ironman.. For the love of 80s paint jobs!

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Post your Centurion Ironman.. For the love of 80s paint jobs!

Old 01-07-19, 03:35 PM
  #5926  
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Well, I'm glad you rescued it.
That is one rigged setup.
Deal4Fuji can ride that size, maybe he'd be interested.

It's a challenge for anyone, but he knows a real expert.

Again, it's in better hands. Good for you.
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Old 01-07-19, 03:40 PM
  #5927  
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a tetnus shot, wax and some elbow grease, it would be .. ok.

what size is the frame looks to be 64-62cm?
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Old 01-07-19, 04:03 PM
  #5928  
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Originally Posted by RobbieTunes View Post

Again, it's in better hands. Good for you.
hopefully


Originally Posted by fleslider View Post
a tetnus shot, wax and some elbow grease, it would be .. ok.

what size is the frame looks to be 64-62cm?
64cm seat tube with a 58.5cm top tube
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Old 01-07-19, 04:30 PM
  #5929  
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Whoo! That's gonna need some work.
The shifters, brake calipers, front derailleur,crankset, and headset are original...oh and most likely the seatpost.

Speaking of work, my wife finally went back today afte a two week vacation. And I'm finally healed enough to start working out again. Also I have two Ironman projects waiting for me.
1. Returning the oem components back to my Miami Vice. But before I do I'm thinking of clear coating it... well see.
2. Which will be first, is installing 8 speed gripshift on my Carbon Ironman. The problem with gripshift is they come for campy, shimano, and suntour and I don't know which one mine are for. I'll install and hope for the best.
I've done this a time or two so that means it's relatively simple. The only problem you'll likely to encounter is the gripshift diameter is too small to fit my aero bars. So I have remove the metal ring with the allen bolt to make it fit. Unfortunately after removing the metal ring the allen bolt won't hold well so then I have to use washers and a pan head sheet metal screw to hold the gripshift in place.
Something like these pics show.
To clear or not.


Finally, gripshift for the carbon.


Disassembled gripshift.


Metal piece had to be removed to fit on my style aerobars.
​​​​​​​
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Old 01-07-19, 04:42 PM
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Not tired of seeing your bike pictures!

Originally Posted by horatio View Post


I'm sure everyone's getting tired of seeing this one, but I can't help showing off.

RogerM, really dig the fork on that gray Centurion.
I believe that a real bike person never gets tired of looking at bike photos more than once. I think it's great that you love to show off your bike.
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Old 01-07-19, 04:57 PM
  #5931  
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tex , is this the part you need bigger ? If so how much ?

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Old 01-07-19, 05:37 PM
  #5932  
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Originally Posted by Oldbikeride View Post
I believe that a real bike person never gets tired of looking at bike photos more than once. I think it's great that you love to show off your bike.
So true! I always go to the first page and look at first bike posted. The one with the lime bar tape.
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Old 01-07-19, 05:43 PM
  #5933  
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Thus much Markwesti.


I could cut here but that steel is hard.


This is what I normally do.
​​​​​​​Well Mark, ALOT.
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Old 01-07-19, 06:46 PM
  #5934  
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PM sent tex . mw
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Old 01-07-19, 10:22 PM
  #5935  
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Originally Posted by seypat View Post
So true! I always go to the first page and look at first bike posted. The one with the lime bar tape.
I miss @frantik. Cool cat.
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Old 01-08-19, 02:36 PM
  #5936  
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Well I've installed the 8 speed gripshift. And it doesn't shift perfect, so guessing it's not made for modern shimano 8 speed cassette. Maybe old style dura ace or campy or suntour, I'm not sure which ones have different pull ratios than modern shimano 8 speed. So when I say modern I mean any shimano 8 speed other than the dura ace (I'm using a tricolor 8 speed cassette).
On another related subject, it seems to me as long as any "modern" rear derailleur has enough lateral movement it shouldn't really matter, and that how much a RD moves is determined by the shifters. Case in point is these grip shifts, they have internal indentions much like stairs, so each time you twist it shifts and each step determines how much the RD moves. So it can move 4.5 or 5 or whatever (I'm not familiar with that).
Bottom line I can go from smallest cog (sprocket) three times then and the fourth shift it needs a little nudging to go to the next one then shifts fine til the biggest cog (sprocket) then it won't shift it makes a racket like it wants to shift but wont.
So I doubt I'll keep these on here but we'll see.
​​​​​​​Later Irongents. Oh and also @rccardr
The front derailleur has slot options for two or three speed. I tried the two speed and it Would not work it just didn't have enough pull to make it to the big ring. (That may be a clue as to what components these were made for, I mean super short throw). So I just used the three ring version.
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Old 01-08-19, 04:24 PM
  #5937  
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My experience with 8 speed gripshifts is somewhat limited, but I can tell you that a SRAM 8 speed gripshift will mate up with Shimano derailleurs perfectly. That's what Mrs Doc has on both of her Treks, and they operate flawlessly. Have also built a few bikes with 7 or 8 speed gripshifts for others and again, they work great with Shimano FD/RD combinations, some of them with triples and large rear gearsets.

So, given that, likely that the ones you have are not SRAM or Shimano, and that, as you surmise, the pull ratio is different from whatever Shimano/SRAM used for all 6-7-8-9-10 speed components (with a few exceptions, notably DA740X, MTB 10 speed, etc.).

BTW, although indexing occurs at the shifter and not the derailleur, the pull ratio between the two (what the RD/FD 'expects' and what the shifter 'delivers') need to be the same for the indexing to work properly. Except, of course, for friction shifting.
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Old 01-08-19, 06:05 PM
  #5938  
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Originally Posted by rccardr View Post
That's what Mrs Doc has on both of her Treks, and they operate flawlessly.
I hear she has a heck of a wrench available.

BTW, although indexing occurs at the shifter and not the derailleur, the pull ratio between the two (what the RD/FD 'expects' and what the shifter 'delivers') need to be the same for the indexing to work properly. Except, of course, for friction shifting.
+1


Different RD's move different distances given the same length of cable pull.

Almost every Gripshift I've seen was easily able to shift whatever 7sp or 8sp I mated up with it, which was always Shimano. Heck, I think there was a Barbie bike with 7sp Gripshift.

I'd check the RD for "catches" due to grit or grease or cable routing, etc. A lot of them catch right at the first cog, you adjust for it, only to pay the price farther up the cassette/freewheel.

Gripshifts are susceptible to cable creep, so my advice, poorly earned and given, would be to set it right on the "edge" from outermost cog to next one, and let it "catch up" as the cable wraps a bit.
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Old 01-08-19, 09:52 PM
  #5939  
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Here's some questions for the thread. Anyone ever seen a bike with drop in handlebars and barcons? Or how about drop ins with STIs or Campy Ergos on the drop ins? The Suntour vs Fingertip thread got me thinking about that.
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Old 01-08-19, 10:55 PM
  #5940  
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I don't even know what drop-ins are, other than relatives who know you'd not be home if they called ahead.
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Old 01-08-19, 11:04 PM
  #5941  
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Originally Posted by RobbieTunes View Post
I don't even know what drop-ins are, other than relatives who know you'd not be home if they called ahead.
I had to look up the name myself. It's the Scott tri bars that make another 90 at the drops and extend towards each other.
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Old 01-08-19, 11:29 PM
  #5942  
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I see no advantage to them, and though I've seen them at Fiesta, I've never seen anyone actually put their hands down there.
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Old 01-09-19, 12:40 AM
  #5943  
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Yeah, I seem to recall seeing a photo of Greg LeMond on a bike with Scott drop-in bars, but couldn't find a photo or video of him actually using them.

Seems like bar end shifters could work. Not sure about the handling but I guess you can get used to anything.
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Old 01-09-19, 04:40 AM
  #5944  
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Ive seen a couple of versions of the drop ins. The regular like sloar had on one of his bikes a few pages back and another that came close enough to be joined with a bridge attachment.
Tthe concept is the same as aero bars, to draw your elbows closer together. This was to be used in solo breakaways in road races. I think as C-Cat said you get used yo anything.

On another note, thanks to Doc, RT, and markwesti for your input and suggestions, yall guys are the best.
One last thing on the aero bar gripshift. It's not the same as what's found on cruiser bikes. It's a different design but same concept. Reportedly the first generation (which I had) were Not Sram but very shortly after they were, including the three versions I have today. The original version had a regular diameter so they could fit regular road bars and we're aimed at riders that were used to using barcons. They were solid at the top nothing like today's models, you even had to drill a hole in your handlebars to run your cable through. Apparently someone came up with the bright idea to use them on the original scott aero bars like the aero bars I have. These are regular diameter so no problem. But after Greg Lemond '89 TDF win, the add on attachments went full production and because of a rule change (you couldn't have open end bars facing forward) they made them with a hole at the top so you could slide a bar through them and install a neon color bridge (which eventually came in hot pink, yellow, and black).
Anyways, that's why they were sold for different components like, campy shimano, and suntour. The weird thing is they also came for specific shimano and campy sets like 105, 600, and dura ace and chorus, record and so on. And finally in small diameter to fit the small diameter mass produced scott aero bar attachment.
I had mine in '88 and Scott Molina used the exact setup as me to win the Hawaii Ironman that year, Dura Ace 6 speed. I've got a pic of him I'll try to find and post.

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Old 01-09-19, 05:52 AM
  #5945  
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This is identical to the original,I had however mine didn't have the grip tape it gad ridges. So possibly I had pre sram. Note the enclosed top.they eventually came in 7 speed and neon.


These are the ones I have now. Notice the attachment bridge. These came in 7,8 speed and for different companies.


Finally these are what are commonly used today. Mostly on cruiser bikes and probably all shimano.
​​​​​​​As a follow up and possibly a clarification.
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Old 01-09-19, 11:22 AM
  #5946  
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Wheels and Sugino 165 triple crank arrived courtesy of SeyPat & SeedsBelize


The frame is looking better I have most of the scratches touched up and the white oxidation buffed off. It actually a little shiner that it shows in the picture and still needs some work but its going to look pretty good.
I have most of the rest of the parts ordered and all the parts we are reusing cleaned up and ready to install. For now its going to be 6 or 7 speed but if she likes it as much as I hope she does we may go 9 or 10 speed in the future.
Thanks again Saypat SeedsBeleize & RobbieTunes for helping with this project. She is excited
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Old 01-09-19, 01:26 PM
  #5947  
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Originally Posted by TXsailor View Post


Wheels and Sugino 165 triple crank arrived courtesy of SeyPat & SeedsBelize


The frame is looking better I have most of the scratches touched up and the white oxidation buffed off. It actually a little shiner that it shows in the picture and still needs some work but its going to look pretty good.
I have most of the rest of the parts ordered and all the parts we are reusing cleaned up and ready to install. For now its going to be 6 or 7 speed but if she likes it as much as I hope she does we may go 9 or 10 speed in the future.
Thanks again Saypat SeedsBeleize & RobbieTunes for helping with this project. She is excited
Well I am excited too,to be a part of this.
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Old 01-09-19, 01:47 PM
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We do this while the Italian guys are still fighting about purity.
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Old 01-09-19, 04:16 PM
  #5949  
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Originally Posted by texaspandj View Post


This is identical to the original,I had however mine didn't have the grip tape it gad ridges. So possibly I had pre sram. Note the enclosed top.they eventually came in 7 speed and neon.


These are the ones I have now. Notice the attachment bridge. These came in 7,8 speed and for different companies.


Finally these are what are commonly used today. Mostly on cruiser bikes and probably all shimano.
As a follow up and possibly a clarification.
The only grip shifter I can recall using is the low end Shimano RevoShift on my comfort hybrid/errand bike and some popular comfort cruiser type bikes. I think one used bike I tried a couple of years ago may have used SRAM instead. Better quality but felt the same when shifting.

The RevoShift work fine, but are cheaply made and need to be replaced every few years depending on use and outdoor conditions. It's mostly plastic and eventually pawls break and it won't shift smoothly anymore. I paid $10 or less for a replacement set with cheap cables/housings just as a backup.

But the right/rear derailleur grip shifter is fine. The left/front needs more wrist power to move that front derailleur. It would be even more awkward in the TT aero bar position, at least with my achy old wrists. Not sure whether that's a factor with most time trials since you're probably in the big ring the entire ride. One of my favorite TT segments here is 6 miles and ends in a roller coaster with an increasingly steep series of short but steepish climbs. A couple of times when I didn't have a tailwind I might have shifted to the small ring, but I usually try to avoid that.
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Old 01-09-19, 05:47 PM
  #5950  
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Originally Posted by canklecat View Post
The only grip shifter I can recall using is the low end Shimano RevoShift on my comfort hybrid/errand bike and some popular comfort cruiser type bikes. I think one used bike I tried a couple of years ago may have used SRAM instead. Better quality but felt the same when shifting.

The RevoShift work fine, but are cheaply made and need to be replaced every few years depending on use and outdoor conditions. It's mostly plastic and eventually pawls break and it won't shift smoothly anymore. I paid $10 or less for a replacement set with cheap cables/housings just as a backup.

But the right/rear derailleur grip shifter is fine. The left/front needs more wrist power to move that front derailleur. It would be even more awkward in the TT aero bar position, at least with my achy old wrists. Not sure whether that's a factor with most time trials since you're probably in the big ring the entire ride. One of my favorite TT segments here is 6 miles and ends in a roller coaster with an increasingly steep series of short but steepish climbs. A couple of times when I didn't have a tailwind I might have shifted to the small ring, but I usually try to avoid that.
Yeah with the original gripshifts some had issues with having to twist their wrist too much. So the next version pretty much fixed that. Eventually the gripshift faded out of favor. Mostly I believe because the age groupers follow pros and component sponsored pros like Dave Scott, Mike Pigg and Mark Allen had to use the attachment that allowed you to use regular down tube shifters and then eventually moved to bar end shifters when the components companies caught on. I think the gripshift are efficient and aerodynamically better plus they look cool and different. ..oh looks smooks.
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