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

Schwinn Mirada Single Speed Project

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.

Schwinn Mirada Single Speed Project

Old 11-18-19, 08:24 PM
  #1  
dickbandit
Senior Member
Thread Starter
 
dickbandit's Avatar
 
Join Date: May 2018
Location: Philadelphia, PA
Posts: 52

Bikes: 1988 Univega Alpina Uno, 1974 Velosolex Saint Tropez, 1995 Trek 830, 1986 Lotus Odyssey, 1987 Schwinn Mirada, 1987 Raleigh Elkhorn

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked 27 Times in 13 Posts
Schwinn Mirada Single Speed Project

So I think I've committed to my winter project for this year: building a mid 80s Schwinn Mirada into a single speed klunker/cruiser. Picked up this PINK frame from CL the other day and mentioned to the seller that I was going to be building it as a single speed. He texted me later in the day and offered to sell me a rear wheel with a Surly flip/flop hub and a Rhyno lite rim. The fact that it was 48 spokes kind of freaked me out, but it was a good deal so I said yes. Today he let me know that he had a front hub and rim to match, so I grabbed those as well and will be building a front wheel.

The rear wheel he sold me has an unused 20 tooth freewheel. I'm thinking about doing a 36 tooth chainring up front. Will 36/20 be too low for an around town cruiser that will sometimes see hard pack and gravel? Or is that a decent gearing for a big heavy bike? I figure that if it doesn't feel right I could always go down to 18t and have a 2:1 ratio. If anyone has any advice/experience on this front it would be a huge help.

Some photos:

dickbandit is offline  
Old 11-18-19, 08:44 PM
  #2  
belacqua
Senior Member
 
Join Date: Sep 2008
Location: Kansas City
Posts: 394
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 86 Post(s)
Liked 16 Times in 14 Posts
Originally Posted by dickbandit View Post
So I think I've committed to my winter project for this year: building a mid 80s Schwinn Mirada into a single speed klunker/cruiser. Picked up this PINK frame from CL the other day and mentioned to the seller that I was going to be building it as a single speed. He texted me later in the day and offered to sell me a rear wheel with a Surly flip/flop hub and a Rhyno lite rim. The fact that it was 48 spokes kind of freaked me out, but it was a good deal so I said yes. Today he let me know that he had a front hub and rim to match, so I grabbed those as well and will be building a front wheel.

The rear wheel he sold me has an unused 20 tooth freewheel. I'm thinking about doing a 36 tooth chainring up front. Will 36/20 be too low for an around town cruiser that will sometimes see hard pack and gravel? Or is that a decent gearing for a big heavy bike? I figure that if it doesn't feel right I could always go down to 18t and have a 2:1 ratio. If anyone has any advice/experience on this front it would be a huge help.

Some photos:

Somebody's got good taste in poetry.

I ran 32x20t on my 26" fixed gear mtb, good for trails but found it too low for pavement. I bet 36x20 works.
belacqua is offline  
Old 11-18-19, 08:53 PM
  #3  
Hudson308 
Mr. Anachronism
 
Hudson308's Avatar
 
Join Date: Jan 2013
Location: City of Lakes
Posts: 1,814

Bikes: fillet-brazed Chicago Schwinns, and some other stuff

Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 433 Post(s)
Liked 94 Times in 70 Posts
36/20 will give you around 47 gear inches with a typical 26" MTB tire. My personal sweet spot for all-around city riding is about 60 gear inches. That gives me enough power for moderate hills, yet I don't spin out too often on level ground. For you to achieve 60 gear inches you would need a 16T in back with your 36T up front, or you could use a 46T up front with that 20T cog in back.
__________________
"If we don't change direction soon, we'll end up where we're going." -Irwin Corey
Hudson308 is offline  
Old 01-24-20, 03:27 PM
  #4  
dickbandit
Senior Member
Thread Starter
 
dickbandit's Avatar
 
Join Date: May 2018
Location: Philadelphia, PA
Posts: 52

Bikes: 1988 Univega Alpina Uno, 1974 Velosolex Saint Tropez, 1995 Trek 830, 1986 Lotus Odyssey, 1987 Schwinn Mirada, 1987 Raleigh Elkhorn

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked 27 Times in 13 Posts
Here are a few pictures of the finished product. Sorry for the lack of close-ups. I ended up going with a 38 tooth Salsa chainring up front and a 16 tooth freewheel in the rear for around 64 gear inches. Handlebars are Klunkers from Velo-Orange and they are a blast. Most of the parts were sourced second-hand. Overall, I am very satisfied with this build. Not a period-correct restoration, but I think it retains the spirit of early Klunker/MTBs which is what I was going for.



dickbandit is offline  
Likes For dickbandit:
Old 01-25-20, 09:20 AM
  #5  
PugRider
Senior Member
 
Join Date: Feb 2013
Location: Worcester, Massachusetts
Posts: 168

Bikes: Fuji Sportif 1.7C, Peugeot Paris Express, Shogun Metro AT, Jamis Durango SX, Miyata Alumicross, Fuji Special Road Racer, Mongoose ATB, Fuji SST 1.0 Team

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 31 Post(s)
Liked 12 Times in 9 Posts
Super-simple and clean, and love the color. Enjoy!
PugRider is offline  

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 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.