Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Crank Set for Bridgestone 1993 MB-4

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Crank Set for Bridgestone 1993 MB-4

Old 07-28-13, 02:16 PM
  #1  
ak08820
Senior Member
Thread Starter
 
Join Date: Jun 2008
Location: Central NJ
Posts: 578

Bikes: MGX MTB, Fuji Supreme, Miyata 90 and a Trek 700 in the works

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Crank Set for Bridgestone 1993 MB-4

I have a what appears to be a dark green colored 1993 Bridgestone MB-4. It is missing the crankset.
According to BikePedia the original one was Crankset Sugino TGP, 24/36/46 teeth.
What would be a good inexpensive replacement for this?

Thanks in advance.
ak08820 is offline  
Old 07-28-13, 02:31 PM
  #2  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 13,252

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 1546 Post(s)
Liked 844 Times in 609 Posts
24/36/46 is a bit of an odd bird-

Since you don't have the original crank, you can't check to see if larger rings will clear the chain stay, so "fudging" in that direction could be problematic.
2x/3x/44 tends to be a pretty available combination and probably your best bet if you can't find anything in 46T.
Just Google mountain bike cranks.

You MOST LIKELY will have to get a new BB (Bottom Bracket)
Older cranks tended to use much longer spindles than the newer cranks.
The crank will fit on, but the FDER probably won't reach the largest ring.

BTW- It appears that has a triple butted frame, so that's VERY desirable!
Bill Kapaun is offline  
Old 07-28-13, 03:22 PM
  #3  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,455

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 1920 Post(s)
Likes: 0
Liked 899 Times in 631 Posts
Originally Posted by Bill Kapaun View Post
24/36/46 is a bit of an odd bird-
That's right, it is unusual but I used to have a '93 Trek 7000 aluminum frame rigid/hardtail MTB that came with a Deore LX 110/74 BCD crank with that exact chainring combination.

It also had the oddest cup-and-cone bottom bracket since the spindle had been installed with the longer end toward the nds. I discovered this at the first overhaul and when I tried to correct this "mistake" the nds crank arm hit it's chainstay. I later installed a UN-7X cartridge bottom bracket and had to use a 127 mm spindle length to get the nds crank arm to clear the chainstay. Despite the longer ds extension, the bike still shifted decently.
HillRider is offline  
Old 07-28-13, 03:41 PM
  #4  
dsbrantjr
Senior Member
 
dsbrantjr's Avatar
 
Join Date: Sep 2010
Location: Roswell, GA
Posts: 8,288

Bikes: '93 Trek 750, '92 Schwinn Crisscross, '93 Mongoose Alta

Mentioned: 30 Post(s)
Tagged: 0 Thread(s)
Quoted: 1423 Post(s)
Liked 1,052 Times in 703 Posts
Rivendell Bike has a very nice Sugino crankset with the same 46/36/26 lineup: https://www.rivbike.com/product-p/cr1.htm
I recently put a Shimano Acera FC-M361 42/32/22 on an old MTB and replaced the large ring with a 46T Origin8 one and it shifts fine; I shimmed the large ring out 1.2mm to keep the chain from rubbing it when in the middle ring. You may be satisfied with the 42T ring as-is.
dsbrantjr is offline  
Likes For dsbrantjr:
Old 07-28-13, 03:59 PM
  #5  
bikemig 
Senior Member
 
bikemig's Avatar
 
Join Date: Apr 2012
Location: Middle Earth (aka IA)
Posts: 19,613

Bikes: A bunch of old bikes and a few new ones

Mentioned: 169 Post(s)
Tagged: 0 Thread(s)
Quoted: 5530 Post(s)
Liked 2,490 Times in 1,601 Posts
I just put a stronglight 99 crankset with english cups on my 1993 XO-2; go figure. There is no reason not to mod that bike to your heart's content as long as you're not worried about the C&V thought police, :


A sugino is an excellent choice for that bike. You can pick up a sugino xd 600 for a little over $100 if you shop around, https://www.treefortbikes.com/product...FYFhMgodVWMAgw

You could pick up a nashbar branded triple for $59.99 which will be fine for that bike and the price is certainly hard to beat if you don't lose sleep over steel inner chainrings (I never have but ymmv): https://www.nashbar.com/bikes/Product...2_502057_-1___
Attached Images
File Type: jpg
IMG_1718.jpg (99.9 KB, 83 views)
bikemig is offline  
Old 11-20-20, 11:02 PM
  #6  
mieklein
Junior Member
 
Join Date: Nov 2020
Location: New Orleans, LA
Posts: 22

Bikes: Klein Mantra, '98 Klein Pulse Comp, '97 GT LTS-3, '93 Bridgestone MB-4, Gary Fisher Utopia, RIP 2011 Trek Gary Fisher Edition Kaitai (Stolen Twice!)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Likes: 0
Liked 3 Times in 2 Posts
1993 Bridgestone MB-4

Originally Posted by ak08820 View Post
I have a what appears to be a dark green colored 1993 Bridgestone MB-4. It is missing the crankset.
According to BikePedia the original one was Crankset Sugino TGP, 24/36/46 teeth.
I just purchased a '93 Bridgestone MB-4 myself. I know this thread is very old but do you still have that bike? Did you ever find a replacement for the Sugino crankset? The bike I purchased has all original parts but the crankset might need to be replaced. I would love to discuss with you if you still have this bike.
mieklein is offline  
Old 11-21-20, 12:08 AM
  #7  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 13,252

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 1546 Post(s)
Liked 844 Times in 609 Posts
Originally Posted by mieklein View Post
I just purchased a '93 Bridgestone MB-4 myself. I know this thread is very old but do you still have that bike? Did you ever find a replacement for the Sugino crankset? The bike I purchased has all original parts but the crankset might need to be replaced. I would love to discuss with you if you still have this bike.
Why might it need to be replaced?
If just a worn ring, you can buy replacements. Usually not economically feasible if you have to replace all 3.
Ditto for the BB.
Bill Kapaun is offline  
Old 11-21-20, 12:13 AM
  #8  
mieklein
Junior Member
 
Join Date: Nov 2020
Location: New Orleans, LA
Posts: 22

Bikes: Klein Mantra, '98 Klein Pulse Comp, '97 GT LTS-3, '93 Bridgestone MB-4, Gary Fisher Utopia, RIP 2011 Trek Gary Fisher Edition Kaitai (Stolen Twice!)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Likes: 0
Liked 3 Times in 2 Posts
I appreciate the advice. You are right, it is only a worn ring. I was also just informed that the bike did not originally come with front suspension. It has a RockShox Quadra 21R that is apparently aftermarket. Does adding a front suspension to a bike that was designed without one change the geometry of the bike? It is loose in the head tube but I believe it must just need a headset adjustment.
mieklein is offline  
Old 11-21-20, 06:30 AM
  #9  
ak08820
Senior Member
Thread Starter
 
Join Date: Jun 2008
Location: Central NJ
Posts: 578

Bikes: MGX MTB, Fuji Supreme, Miyata 90 and a Trek 700 in the works

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by mieklein View Post
I just purchased a '93 Bridgestone MB-4 myself. I know this thread is very old but do you still have that bike? Did you ever find a replacement for the Sugino crankset? The bike I purchased has all original parts but the crankset might need to be replaced. I would love to discuss with you if you still have this bike.
I still have that frame but it is still left alone and not worked on.
ak08820 is offline  
Old 11-21-20, 09:10 AM
  #10  
mieklein
Junior Member
 
Join Date: Nov 2020
Location: New Orleans, LA
Posts: 22

Bikes: Klein Mantra, '98 Klein Pulse Comp, '97 GT LTS-3, '93 Bridgestone MB-4, Gary Fisher Utopia, RIP 2011 Trek Gary Fisher Edition Kaitai (Stolen Twice!)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Likes: 0
Liked 3 Times in 2 Posts
Originally Posted by ak08820 View Post
I still have that frame but it is still left alone and not worked on.
Did you ever find the a replacement crankset?
mieklein is offline  
Old 11-21-20, 09:14 AM
  #11  
ak08820
Senior Member
Thread Starter
 
Join Date: Jun 2008
Location: Central NJ
Posts: 578

Bikes: MGX MTB, Fuji Supreme, Miyata 90 and a Trek 700 in the works

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by mieklein View Post
Did you ever find the a replacement crankset?
No, but I may have one around when needed.
ak08820 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
redboy1
Bicycle Mechanics
7
08-10-16 12:10 PM
zandoval
Classic & Vintage
6
07-25-11 07:05 PM
badger_biker
Touring
17
08-23-10 10:02 PM
khatfull
Classic & Vintage
10
05-04-10 10:43 AM
ClarkinHawaii
Bicycle Mechanics
30
04-15-10 07:27 PM

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


Thread Tools
Search this Thread

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

Copyright © 2022 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.