Considering older bike, but...
#1
CycleManiaque
Thread Starter
Join Date: Jan 2007
Location: Hillsboro, OR
Posts: 74
Bikes: Pinarello Prince, Diamondback Podium 7, Focus Izalco Tria 1.0, Surly LHT, Raleigh Technium, Brodie Romax
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Considering older bike, but...
Hi,
I'm pondering the purchase of a c. 1986 Miyata touring bike which, the good news, has been kept in very good original condition, and the possible bad news, has been kept in very good original condition.
It was originally spec'd with a biospace crank with a 3x6 gearing system. Personally I would want to do away with the biospace chain rings. Is this a simple matter of replacing the chain rings on the existing crank, or would I need to replace the entire crank? Also, how easy is it to still find chains that are compatible with 6 cog systems? The cost on this is only reasonable if I don't have to replace the entire drive train.
thanks!
I'm pondering the purchase of a c. 1986 Miyata touring bike which, the good news, has been kept in very good original condition, and the possible bad news, has been kept in very good original condition.
It was originally spec'd with a biospace crank with a 3x6 gearing system. Personally I would want to do away with the biospace chain rings. Is this a simple matter of replacing the chain rings on the existing crank, or would I need to replace the entire crank? Also, how easy is it to still find chains that are compatible with 6 cog systems? The cost on this is only reasonable if I don't have to replace the entire drive train.
thanks!
#2
Member
Join Date: Mar 2004
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
"Personally I would want to do away with the biospace chain rings" Why? Are you qualified to make that statement? There are still a few of us out here that ride Biopace CR. All my bikes have Biopace. Chains are easy to find. nashbar, wal-mart.
When buying a used bike, go for fit, not price. I would offer this guy ~ $80 to $125 for his bike. You'll have to repack all the bearings, replace cables and probably tires and tubes if you want a dependable ride. I know just pulled my Miyata out of storage, and had to do all of the above.
When buying a used bike, go for fit, not price. I would offer this guy ~ $80 to $125 for his bike. You'll have to repack all the bearings, replace cables and probably tires and tubes if you want a dependable ride. I know just pulled my Miyata out of storage, and had to do all of the above.
#3
Senior Member
Join Date: Nov 2003
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked 0 Times
in
0 Posts
#4
Senior Member
Join Date: Jul 2005
Posts: 7,486
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Liked 159 Times
in
88 Posts
Hi,
I'm pondering the purchase of a c. 1986 Miyata touring bike which, the good news, has been kept in very good original condition, and the possible bad news, has been kept in very good original condition.
It was originally spec'd with a biospace crank with a 3x6 gearing system. Personally I would want to do away with the biospace chain rings. Is this a simple matter of replacing the chain rings on the existing crank, or would I need to replace the entire crank? Also, how easy is it to still find chains that are compatible with 6 cog systems? The cost on this is only reasonable if I don't have to replace the entire drive train.
thanks!
I'm pondering the purchase of a c. 1986 Miyata touring bike which, the good news, has been kept in very good original condition, and the possible bad news, has been kept in very good original condition.
It was originally spec'd with a biospace crank with a 3x6 gearing system. Personally I would want to do away with the biospace chain rings. Is this a simple matter of replacing the chain rings on the existing crank, or would I need to replace the entire crank? Also, how easy is it to still find chains that are compatible with 6 cog systems? The cost on this is only reasonable if I don't have to replace the entire drive train.
thanks!
Here's how to determine BCD, from Sheldon's site:
https://www.sheldonbrown.com/gloss_bo-z.html#bcd
Last edited by well biked; 09-02-07 at 12:33 PM.
#5
CycleManiaque
Thread Starter
Join Date: Jan 2007
Location: Hillsboro, OR
Posts: 74
Bikes: Pinarello Prince, Diamondback Podium 7, Focus Izalco Tria 1.0, Surly LHT, Raleigh Technium, Brodie Romax
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I don't understand you... first you tell me to only buy upon fit, not price, and then you recommend how much I should pay for this bike. But thanks for the advice,
#6
Senior Member
Hi,
I'm pondering the purchase of a c. 1986 Miyata touring bike which, the good news, has been kept in very good original condition, and the possible bad news, has been kept in very good original condition.
It was originally spec'd with a biospace crank with a 3x6 gearing system. Personally I would want to do away with the biospace chain rings. Is this a simple matter of replacing the chain rings on the existing crank, or would I need to replace the entire crank? Also, how easy is it to still find chains that are compatible with 6 cog systems? The cost on this is only reasonable if I don't have to replace the entire drive train.
thanks!
I'm pondering the purchase of a c. 1986 Miyata touring bike which, the good news, has been kept in very good original condition, and the possible bad news, has been kept in very good original condition.
It was originally spec'd with a biospace crank with a 3x6 gearing system. Personally I would want to do away with the biospace chain rings. Is this a simple matter of replacing the chain rings on the existing crank, or would I need to replace the entire crank? Also, how easy is it to still find chains that are compatible with 6 cog systems? The cost on this is only reasonable if I don't have to replace the entire drive train.
thanks!
Tim
#7
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
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: 2025 Post(s)
Likes: 0
Liked 1,095 Times
in
741 Posts
Nashbar has house brand replacement chainrings in a variety of bolt circle diameters at attractive prices but their web site shows most sizes are out of stock right now. If you buy "name brand" chainrings you will, as cs1 mentioned, find they cost as much or more than a new crank.
Nashbar has a couple of house brand cranks complete for $90 -$100 and is closing out Shimano 105 and Ultegra 9-speed cranks for $50 - $60. The Shimano cranks will require a new (Octalink) bottom bracket but the Nashbar cranks use the older square taper design.
Nashbar has a couple of house brand cranks complete for $90 -$100 and is closing out Shimano 105 and Ultegra 9-speed cranks for $50 - $60. The Shimano cranks will require a new (Octalink) bottom bracket but the Nashbar cranks use the older square taper design.
#8
Senior Member
Join Date: Jul 2005
Posts: 7,486
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Liked 159 Times
in
88 Posts
Btw, I've bought quite a few of the Nashbar chainrings, they're actually made by Stronglight. They even come in a Stronglight package, and have "Stronglight" etched onto the chainrings. But yeah, the big challenge is catching them in stock-