Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-28-07, 08:27 PM   #1
RFC
Senior Member
Thread Starter
 
RFC's Avatar
 
Join Date: Sep 2007
Location: Scottsdale, AZ
Bikes: many
Posts: 4,456
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Well. . . , it's C&V for a Tri / TT bike

Here is my purchase today -- a 1996 or 1998 Scott Waimea. This is the seller's picture.



Yes, I know, it is missing some parts.

I want to get the right components for it, however, this is going to be a fun project and not another money pit.

It is an 8-speed and appears to have originally been outfitted with Shimano 105.

Please help me select components.

Will 9-speed bar ends and rear derailleur work with the 8-speed cassette?

What crank should I get and what length should it be?

The cassette is 12-13-14-15-16-17-19-21. What size chain rings would be appropriate.

Thanks as always,

RFC
RFC is offline   Reply With Quote
Old 12-28-07, 08:52 PM   #2
USAZorro
Seņor Member
 
USAZorro's Avatar
 
Join Date: Oct 2004
Location: Florence, KY
Bikes: 1954 Hetchins M.O., 1959 Viking Severn Valley, 1970 Raleigh Pro, 1972 Fuji "The Finest", 1974 Raleigh Superbe&Comp, 1976 Raleigh Team Pro, 1996 Giant Iguana, 2000 Bob Jackson Arrowhead
Posts: 14,387
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Where do you get the brake levers that fit on those tri bars?
__________________
In search of what to search for.
USAZorro is offline   Reply With Quote
Old 12-28-07, 09:49 PM   #3
stronglight
Old Skeptic
 
stronglight's Avatar
 
Join Date: Jan 2006
Location: New Mexico, USA
Bikes: 19 road bikes & 1 Track bike
Posts: 1,044
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Any Shimano 9-speed cassette would fit the 8-speed hub, if you already have 9-speed barend shifters which you plan to use. Otherwise, I suppose you could change out all the spacers on the 8-speed cassette to 9-speed spacers and you would just have an additional non-functioning notch in the indexing.

With a new 9-speed cassette you could also add an 11 tooth cog for your top gear and still have all the other cogs the same as are currently on the 8-speed. --- By doing this, using a 53t chainring, this would give you a 126 inch gear versus just the 116" now on the 8-speed... or, put in other terms, pedaling at 100 rpm you would hit 37.7 mph versus just 34.5 mph with the 12t cog when pedaling at the same cadence. .... AND, ironically, most 9-speed cassettes are actually lighter than comparable 8-speeds.

Any crank you want to use should work. However, I've seen some TT bikes set up with 42x52 rings rather than the rider's usual 39x53... just because he did not need the lower gears which the 39t chainring offered, and also with longer crank arms than the rider usually used (175 mm versus 170). Unfortunately, I've only seen chainrings correctly paired with these two combinations - at least for Shimano.

David Millar used only a single 53t chainring and no front derailleur. However he also screwed up at the start of that particular TT race and accidentally slipped the chain off without the front derailleur to catch and re-align it, so he actually lost time in spite of lightening his bike.

By the way, that stem on that bike looks like it is setting the bar rather high for a TT bike... but that should be easy enough to change out.
stronglight is offline   Reply With Quote
Old 12-28-07, 09:55 PM   #4
stronglight
Old Skeptic
 
stronglight's Avatar
 
Join Date: Jan 2006
Location: New Mexico, USA
Bikes: 19 road bikes & 1 Track bike
Posts: 1,044
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by USAZorro View Post
Where do you get the brake levers that fit on those tri bars?
USAZorro,
Those look to me like Dia-Compe's "model 188". I think they're still made. Otherwise, Tektro makes a very similar set - often sold re-badged as Nashbar's house brand. All of them are pretty inexpensive and really simple to set up.
stronglight is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 09:19 PM.