Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

'87 C'dale ST400, what should I do first

Notices
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.

'87 C'dale ST400, what should I do first

Old 05-27-11, 01:09 PM
  #1  
superbleu
Member
Thread Starter
 
Join Date: Apr 2011
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
'87 C'dale ST400, what should I do first

I still have my very first real bike, an '87 ST400.
The bike has been neglected by me but still rides fine. Most everything is original even the cables and housing. The only thing that isn't original are the saddle, pedals, handlebar tape, brake shoes and the Wheels, I switched over from 27" to 700c wheels after I was t-boned by a Harley and taco'ed my rear wheel.

My question is what should I do to it first besides replace the cables. Everything still works ok, despite never being taken in for a tune.

Is it worth the expense to upgrade the drivetrain or leave as is?
superbleu is offline  
Old 05-27-11, 01:28 PM
  #2  
canopus 
Senior Member
 
canopus's Avatar
 
Join Date: Mar 2009
Location: Kingwood, TX
Posts: 1,352

Bikes: 1985 Cannondale SR300, 1985 Cannondale ST400, 1984 Trek 760, 1984 Trek 610, 1984 Trek 720, 1981 Trek 710, 1979 Trek 710, Gary Littlejohn Cruiser, BMX

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
Liked 52 Times in 40 Posts
Ride it first, upgrade it later.

Whether or not "Its worth it" is a matter of opinion, however, I like mine.
__________________
1984 Cannondale ST
1985 Cannondale SR300
1980 Gary Littlejohn Cruiser
1984 Trek 760
1981 Trek 710
Pics

Last edited by canopus; 05-27-11 at 01:31 PM.
canopus is offline  
Old 05-27-11, 01:45 PM
  #3  
knoregs
Senior Member
 
knoregs's Avatar
 
Join Date: Nov 2005
Location: Vermont
Posts: 601
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I've got an '87 ST400 in the stand myself right now. The catalog shows two colors, white and 'banana'. I've got the 'banana' with red decals, 100% original. I plan to upgrade the drivetrain in the future but for now it'll remain mostly original. I did however order a new 7 speed Shimano freewheel to replace the shot 6 speed SunTour. I've got indexed 7 speed downtube shifters to go with the new freewheel. Also have new chain, cables/housing, bar wrap, tires, tubes, and brake pads ready to install also.

I haven't ridden it yet but when I sat on it I smiled because the fit is near perfect. And with those long chain stays I think I'm going to like the way it rides. I already have plenty of 'race' bikes. So I'm thinking 'yeah', it'll be worth upgrading.

~kn
knoregs is offline  
Old 05-27-11, 01:46 PM
  #4  
superbleu
Member
Thread Starter
 
Join Date: Apr 2011
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I do ride it although mostly on the trainer when the weather stinks, but I'm thinking of using it for commuting to work. I have an R800 as my main bike, although that is only about 10 years newer than the '87

Mine is white with the orange-ish lettering. I liked the Yellow Imron paint they used back then too, but they only had the white in my size. I really wanted the SR-400, but now I'm glad I ended up getting the ST-400 instead.
superbleu is offline  
Old 05-27-11, 02:04 PM
  #5  
dwellman
Godbotherer
 
dwellman's Avatar
 
Join Date: Jan 2011
Location: Hermitage, TN
Posts: 1,322

Bikes: 1986 Cannondale SR300 (full SRAM Apex) 1996 Cannondale R800 (Full SRAM Rival), 1997 Cannondale R200 (Shimano Tiagra), 2012 Cannondale CAAD 10-5, 1992 Bridgestone RB-1 (SRAM Force)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by superbleu View Post
Everything still works ok, despite never being taken in for a tune. Is it worth the expense to upgrade the drivetrain or leave as is?
I wish I had left mine alone. . . then again I was working on my second bent rear axle due to the freewheel setup. . . if bent axles become a problem you might could look at the rear wheel as first target. Verify that your rear spacing is 128mm or not. Mine is.
dwellman is offline  
Old 05-27-11, 02:13 PM
  #6  
dwellman
Godbotherer
 
dwellman's Avatar
 
Join Date: Jan 2011
Location: Hermitage, TN
Posts: 1,322

Bikes: 1986 Cannondale SR300 (full SRAM Apex) 1996 Cannondale R800 (Full SRAM Rival), 1997 Cannondale R200 (Shimano Tiagra), 2012 Cannondale CAAD 10-5, 1992 Bridgestone RB-1 (SRAM Force)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by knoregs View Post
I did however order a new 7 speed Shimano freewheel to replace the shot 6 speed SunTour.
Oh, yeah, I forgot I did that too a long time ago. SACHS 7 speed 12-21T. . . I've long since worn that out. So that along with the bent axle, I'm in three times the cost of the bike on a 100% SRAM Rival redeux.
dwellman is offline  
Old 05-27-11, 02:16 PM
  #7  
plodderslusk
Senior Member
 
Join Date: Nov 2004
Location: Norway
Posts: 1,408
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 14 Times in 6 Posts
I bought an old ST 400 at a fleamarket and it looks like the rear wheel is off center because it is closer to one chainstay near the crankbox. Is this normal for this frame? Sorry for a stupid question but I am quite perplexed by this frame. If it is straight I could use modern 130 mm rear wheels and I have an old Record Normal reach brakeset that allows me to use 700 cc wheels instead of the 27" set it was made for.
plodderslusk is offline  
Old 05-27-11, 02:34 PM
  #8  
canopus 
Senior Member
 
canopus's Avatar
 
Join Date: Mar 2009
Location: Kingwood, TX
Posts: 1,352

Bikes: 1985 Cannondale SR300, 1985 Cannondale ST400, 1984 Trek 760, 1984 Trek 610, 1984 Trek 720, 1981 Trek 710, 1979 Trek 710, Gary Littlejohn Cruiser, BMX

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
Liked 52 Times in 40 Posts
Originally Posted by plodderslusk View Post
....the rear wheel is off center because it is closer to one chainstay near the crankbox. Is this normal for this frame?
No but sometimes the heat treatment did some funny things to the tubes. It is not critical, just align it between the chain stays and seat stays when you put the wheel in or, if your really anal, you can file the dropout, gently and carefully, with a round file using some dropout alignment tools to get it dialed in. Personally, I don't worry about it since I have to spread the frame anyway to put in 130mm hub.

My ST is the bike I do my longer distances on. Very rarely does it do less than 60 miles on a ride.
__________________
1984 Cannondale ST
1985 Cannondale SR300
1980 Gary Littlejohn Cruiser
1984 Trek 760
1981 Trek 710
Pics
canopus is offline  
Old 05-27-11, 02:39 PM
  #9  
knoregs
Senior Member
 
knoregs's Avatar
 
Join Date: Nov 2005
Location: Vermont
Posts: 601
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by dwellman View Post
Verify that your rear spacing is 128mm or not. Mine is.
Lucky you... I read this in rccardr's thread and thought 'great, I can use some modern wheels'. Upon measuring I find mine at actually 125mm which seems to much to spread an aluminum frame to put my modern 130mm wheel in there.

Originally Posted by plodderslusk View Post
I bought an old ST 400 at a fleamarket and it looks like the rear wheel is off center because it is closer to one chainstay near the crankbox. Is this normal for this frame?
I don't know if it's normal but I've noticed that with mine also.

~kn
knoregs is offline  
Old 05-27-11, 02:44 PM
  #10  
knoregs
Senior Member
 
knoregs's Avatar
 
Join Date: Nov 2005
Location: Vermont
Posts: 601
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by canopus View Post
I have to spread the frame anyway to put in 130mm hub.
Is your ST frame rear spacing in the 125-126mm range? Or more near 128mm others have mentioned?

~kn
knoregs is offline  
Old 05-27-11, 03:39 PM
  #11  
auchencrow
Senior Member
 
auchencrow's Avatar
 
Join Date: Apr 2009
Location: Detroit
Posts: 10,327
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Likes: 0
Liked 9 Times in 7 Posts
Originally Posted by superbleu View Post
.....
... what should I do to it first ...

Lube it up first.
Do the bottom bracket, headset and hubs too (if they weren't recently done when you replaced the wheels)
__________________
- Auchen
auchencrow is offline  
Old 05-27-11, 05:37 PM
  #12  
Henry III
is just a real cool dude
 
Henry III's Avatar
 
Join Date: Aug 2010
Location: The Thumb, MI
Posts: 3,167
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 27 Post(s)
Likes: 0
Liked 22 Times in 9 Posts
I had one of those a few months ago. The downtube if I recall was pretty massive and rivaled a soda can. lol.
Henry III is offline  
Old 05-27-11, 07:58 PM
  #13  
canopus 
Senior Member
 
canopus's Avatar
 
Join Date: Mar 2009
Location: Kingwood, TX
Posts: 1,352

Bikes: 1985 Cannondale SR300, 1985 Cannondale ST400, 1984 Trek 760, 1984 Trek 610, 1984 Trek 720, 1981 Trek 710, 1979 Trek 710, Gary Littlejohn Cruiser, BMX

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
Liked 52 Times in 40 Posts
Originally Posted by knoregs View Post
Is your ST frame rear spacing in the 125-126mm range? Or more near 128mm others have mentioned?

~kn
127.5

If yours is spaced at 125 I would check it for any bending and alignment. All of mine have been 127 to 127.5. I don't remember any new ones back then having small spacing issues either.
__________________
1984 Cannondale ST
1985 Cannondale SR300
1980 Gary Littlejohn Cruiser
1984 Trek 760
1981 Trek 710
Pics
canopus is offline  
Old 05-28-11, 06:00 AM
  #14  
dwellman
Godbotherer
 
dwellman's Avatar
 
Join Date: Jan 2011
Location: Hermitage, TN
Posts: 1,322

Bikes: 1986 Cannondale SR300 (full SRAM Apex) 1996 Cannondale R800 (Full SRAM Rival), 1997 Cannondale R200 (Shimano Tiagra), 2012 Cannondale CAAD 10-5, 1992 Bridgestone RB-1 (SRAM Force)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Henry III View Post
I had one of those a few months ago. The downtube if I recall was pretty massive and rivaled a soda can. lol.
Hey: steel strength at titanium weight-- i's a beautiful thing.
dwellman is offline  
Old 05-28-11, 07:57 AM
  #15  
rccardr 
aka: Dr. Cannondale
 
rccardr's Avatar
 
Join Date: Jul 2009
Posts: 6,392

Bikes: Lots. Just...lots.

Mentioned: 177 Post(s)
Tagged: 0 Thread(s)
Quoted: 1492 Post(s)
Liked 794 Times in 389 Posts
Even 125 is OK to take a 130 axle. Could be one of the dropouts is a little bent. No worries.

Anybody who wants replacement Suntour freewheels, Cyclone RD's or Accushift downtube shifters for these bikes, let me know. I have a bunch of them, yours for the cost of postage.
__________________
Hard at work in the Secret Underground Laboratory...
rccardr is offline  
Old 05-28-11, 09:24 AM
  #16  
knoregs
Senior Member
 
knoregs's Avatar
 
Join Date: Nov 2005
Location: Vermont
Posts: 601
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by rccardr View Post
Even 125 is OK to take a 130 axle. Could be one of the dropouts is a little bent. No worries.
It's good to know that spreading the 125 to 130 hasn't been a problem. I think that'll be the direction I go on my ST400.


Originally Posted by rccardr View Post
Anybody who wants replacement Suntour freewheels, Cyclone RD's or Accushift downtube shifters for these bikes, let me know. I have a bunch of them, yours for the cost of postage.
Could've uses a freewheel a week or so ago but I ended up buying a 'Mega Range' Shimano Hyperglide freewheel in 7 speed to replace the original 6 speed. I've got my fingers crossed that the RD will handle the 34T low gear on it.

On a side note... Anybody with one of these late 80's ST400 frames find them a bit odd. I mean the frame is all decked out 'touring' ready with double eyelets front and back, lowrider mounts on the fork, long chainstays. But yet it's outfitted with a double crank with 52/42 rings. And I'm looking at the clearance after mounting only 25mm tires on the stock 27" rims thinking fenders would be a SQUEEZE, if they fit at all.

~kn
knoregs is offline  
Old 05-28-11, 02:40 PM
  #17  
rccardr 
aka: Dr. Cannondale
 
rccardr's Avatar
 
Join Date: Jul 2009
Posts: 6,392

Bikes: Lots. Just...lots.

Mentioned: 177 Post(s)
Tagged: 0 Thread(s)
Quoted: 1492 Post(s)
Liked 794 Times in 389 Posts
ST = sport/touring. Not intended for fat tires or fenders, more like relaxed geometry for credit card touring. If you go to 700's you canusually mount something a little thicker.

The higher end 600 and up ST's had triple rings, but so did many of the 400's even though they were not in the catalog. I've picked up two in the past six months that had SR Apex half step + grannies.
__________________
Hard at work in the Secret Underground Laboratory...
rccardr is offline  
Old 05-28-11, 02:45 PM
  #18  
wrk101
Thrifty Bill
 
wrk101's Avatar
 
Join Date: Jan 2008
Location: Mountains of Western NC
Posts: 22,599

Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more

Mentioned: 79 Post(s)
Tagged: 0 Thread(s)
Quoted: 906 Post(s)
Liked 318 Times in 239 Posts
+1 New bearings and grease. You risk destroying bb cups and hubs if you ride it as is. Assume those haven't been serviced in 25 years.
wrk101 is offline  
Old 05-28-11, 03:21 PM
  #19  
bradtx
Senior Member
 
Join Date: Jun 2010
Location: Pearland, Texas
Posts: 7,576

Bikes: Cannondale, Trek, Raleigh, Santana

Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 305 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by wrk101 View Post
+1 New bearings and grease. You risk destroying bb cups and hubs if you ride it as is. Assume those haven't been serviced in 25 years.
Don't forget the headset.

It doesn't take long to service a bike, if the special tools are handy. A LBS can service a bottom bracket and freewheel and shouldn't be too expensive.

Brad
bradtx is offline  
Old 05-28-11, 03:37 PM
  #20  
canopus 
Senior Member
 
canopus's Avatar
 
Join Date: Mar 2009
Location: Kingwood, TX
Posts: 1,352

Bikes: 1985 Cannondale SR300, 1985 Cannondale ST400, 1984 Trek 760, 1984 Trek 610, 1984 Trek 720, 1981 Trek 710, 1979 Trek 710, Gary Littlejohn Cruiser, BMX

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
Liked 52 Times in 40 Posts
Originally Posted by rccardr View Post
ST = sport/touring. Not intended for fat tires or fenders, more like relaxed geometry for credit card touring. If you go to 700's you canusually mount something a little thicker.
A set of 700x32 and some 45mm fenders is the max you stuff under them. And you aren't taking that through any mud since the clearances are in the 2mm range.
__________________
1984 Cannondale ST
1985 Cannondale SR300
1980 Gary Littlejohn Cruiser
1984 Trek 760
1981 Trek 710
Pics
canopus is offline  
Old 06-10-11, 04:48 PM
  #21  
superbleu
Member
Thread Starter
 
Join Date: Apr 2011
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Any suggestions on what currently available brakes might work with this frame and 700c wheels? The current/original brakes no longer stay centered and pull to one size when actuated.
superbleu is offline  
Old 06-10-11, 04:57 PM
  #22  
RFC
Senior Member
 
RFC's Avatar
 
Join Date: Sep 2007
Location: Scottsdale, AZ
Posts: 4,466

Bikes: many

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Likes: 0
Liked 10 Times in 9 Posts
Originally Posted by knoregs View Post
Lucky you... I read this in rccardr's thread and thought 'great, I can use some modern wheels'. Upon measuring I find mine at actually 125mm which seems to much to spread an aluminum frame to put my modern 130mm wheel in there.



I don't know if it's normal but I've noticed that with mine also.

~kn
Actually, I have 130's on a 126. It really is no big deal and many on the forum have done it.
RFC is offline  
Old 06-10-11, 10:33 PM
  #23  
badger_biker 
Senior Member
 
badger_biker's Avatar
 
Join Date: Jan 2004
Location: Rural Western Wisconsin
Posts: 1,434

Bikes: 10 vintage touring machines

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 88 Post(s)
Liked 59 Times in 35 Posts
Originally Posted by Henry III View Post
I had one of those a few months ago. The downtube if I recall was pretty massive and rivaled a soda can. lol.
Henry - it didn't happen to be a blue T400 did it? I noticed your location and my son bought a T400 a few weeks ago in Neenah. I'm doing a few tweaks on it for him and I had to chuckle at your comment because I thought the downtube was huge too. I never knew they were that oversized.
__________________
Nothing compares to the simple pleasure of a bike ride - JFK
badger_biker is offline  
Old 06-11-11, 09:08 AM
  #24  
Henry III
is just a real cool dude
 
Henry III's Avatar
 
Join Date: Aug 2010
Location: The Thumb, MI
Posts: 3,167
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 27 Post(s)
Likes: 0
Liked 22 Times in 9 Posts
Hahaha that'd be the one! Your son works out at Gulfstream right? Small world!
Henry III is offline  
Old 06-12-11, 09:46 PM
  #25  
badger_biker 
Senior Member
 
badger_biker's Avatar
 
Join Date: Jan 2004
Location: Rural Western Wisconsin
Posts: 1,434

Bikes: 10 vintage touring machines

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 88 Post(s)
Liked 59 Times in 35 Posts
Yeah that's him. I rode it a little but the plastic on the cable housing in front of the RD kind of shattered so the indexing was off. I replace that and am waiting for a new cartridge BB. The spindle was fairly pitted and the cups had a little to so I decided to replace the whole thing. I'm anxious to give it another spin and see how stiff that huge frame is. It should make a sweet tourer for him.
__________________
Nothing compares to the simple pleasure of a bike ride - JFK
badger_biker is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.