1988 Schwinn World Sport

Today I found a Schwinn World Sport 12 speed. 64 CM frame. When I found this bike on Offer Up, the seller only showed the front of the bike in the ad. When I went to look at the bike I noticed that someone had painted part of the frame with white spray paint. I took it home anyway. When I got the bike home, I started the detective work of  finding out what year this Schwinn was made. The head badge says Schwinn Quality ,which indicates that it was made in Taiwan. Schwinn had many frames made in Taiwan by the Giant manufacturing company. They make the Giant bicycles you see today ,but in the 80's they made frames for Schwinn and other bicycle companies. This bike has 4130 chromoly tubing which makes this bike rather light. The frame has nice lug work. I went to SchwinnCruisers.com to find the date of the bike. The serial number on this bike is located on the bottom bracket. I thought for a late model Schwinn the serial number was located on the side of the head tube or the rear drop out. This was not the case with this bike, so I narrowed it down using the component group. This bike has Shimano SIS drive train components and a Sugino MP crankset. This model has blue and silver two tone paint which is a 1988 paint scheme. I don't know the month it was made ,but I now know it was built in 1988. Next thing to do is disassemble the bike and check the condition of the components. Then I will start removing the white spray paint from the frame. The  product I am using is Zymol paint cleaner wax. It is made with carnauba wax. I read that carnauba wax will remove spray paint from automotive paint finish. It is taking some time and patience,but the Carnuba wax is starting to remove the spray paint from the frame.

Before

after

Seat Lug Before

Down Tube Before

       I finally removed all the spray paint from the frame. It took a while but the carnuba wax worked without scratching the frame. Later, I will try to find some touch up paint for the chips in the frame.   More pictures of the frame

Down tube after 

     
Next I am going to disassemble the components, then clean and polish them. I already disassembled the cranks. and cleaned the headset bearings and bottom bracket bearings. I polished the cranks and reassembled them and torqued the chainring bolts to 75 inch pounds. I cleaned and polished the stem and stem bolts.  I also cleaned and polished the shift levers. The headset has been polished as well as the bottom bracket cups.

before

after

Cranks ,before and after. I wet sanded the cranks ,starting with 400 grit and ending with 2500 grit ,then I polished them with mothers aluminum polish.

before

after

                                                                                                                                                             

I cleaned the bearings for the bottom bracket and polished all the bottom bracket components.

Bearings Before

Bottom Bracket Before

Every thing cleaned and polished up nicely.

Next I cleaned and polished the stem, front and rear brake calipers and brake levers. all polished up nicely.

Stem Before

Stem Polished

Front Brake Caliper Before

Front Brake Caliper Polished

Rear Brake Caliper Before

Rear Brake Caliper Polished

                   

Left Brake Lever Before

Right Brake Lever Before

Both Levers Polished

                                                                                                                                                                                                                                                                                                                                          Later in the week ,I cleaned and polished the seat post and seat hardware. Also cleaned and polished the seat clamp bolt.  

                                                                             
                                                                          

Seat Post Before

Seat Post and Hardware Polished

                                                                                                                                   

                                                                                                 
       I cleaned the handle bars after I cleaned all the other components. I used a citrus cleaner and a scotch Bright pad to get all the adhesive off the bars and used metal polish and Bronze Wool to shine the logo on the front.

Handle Bars Polished

Handle Bars Before

The front and rear Derailleurs are in good shape. The front derailleur had some spray paint that has to be removed. I removed the paint with Bronze wool and a light oil. Then I lubricated all the pivot points. I took the rear derailleur apart, cleaned and polished all moving parts. I cleaned and lubricated the jockey wheels also and all pivot points.

Front Derailleur Before

Front Derailleur Before

Front Derailleur Cleaned and Polished

   

Rear Derailleur Before

Rear Derailleur exploded view

                                                                                                                                                                 

Rear Derailleur Cleaned and Polished

I almost forgot about the fork. I cleaned and polished it. I also did some minor touch up work on the Schwinn logo on the side of the fork.

Fork Before

                                                                             

                                                                                 

Drop Outs Before

                                                                                 

Fork Crown Before

Fork Crown Polished

                                                                                   

Fork Polished
 













I didn't take a picture of the fork drop outs before I installed them on the frame. I will have plenty of  

pictures later on in the blog . Next ,I worked on the wheel set. They were very dirty ant had some spray paint on them . The hubs were greasy and had some sticky residue. After lots of scrubbing and polishing , the wheels turned out great. I trued up both wheels , now they roll straight .                                            
                                                                                                                                                          


Front and rear wheels before:
                                                                                                   
                                                                                                                   

                                                                               
                                                                         

                                                                               

front wheel before

 

rear wheel before

rear hub before

front hub before







Front and rear wheels after cleaning and Polishing:


                         

                                                                                       

                                                                              

                                                                            

       

              

after cleaning and polishing , I applied new grease   

Front Hub with new grease

            

rear hub with new grease

   

Rear Cassette Cleaned



Next I cleaned and polished the gear shift pod, which was one of the last components that I had to clean. 
After that was done ,I started building the bike

  

I started with pressing in the headset cups and assembling the head set and installing the fork.

  

Then I assembled the bottom bracket

And Installed the Crank

Handle Bars Installed 

Next ,I installed front and rear Derailleures and brake calipers.

The old tires on the bike were dry rotted ,so I ordered some Kenda Tires. I also ordered new Bar Tape and a new seat, The old seat had a rip in the front. Both the seat and bar tape will be blue to match the front of the bike. I replaced the brake cables and housing as well as the Derailleur cables and housing with Jagwire cables. The bike also gets a new chain and brake pads.

Old Seat

New Seat

New Brake and Shift cables with housing

New KMC Chain

Front wheel ,new tire

Rear wheel , new tire

Top view of Front Derailleur installed

Next photos are of the Schwinn World Sport almost complete. I installed the brake calipers, Derailleures, Brake Cables and shift cables. The last thing I need to do is install the chain ,seat and Bar tape.                           

Seat and all cables and components installed       

Next are photos of the Schwinn World Sport Completely restored. I took the bike for a test ride and it shifts great. It is much faster than I thought it would be. The chromoly frame has a nice ride and feel to it. It corners and handles great. One thing I noticed is that the rear wheel has a small flat spot in it that I could not get out from truing the wheel. radial true is fine . I did not notice any difference while riding the bike. My neighbor noticed me test riding the bike and asked me if it was a new bike. I told him I had just restored it ,and was taking it for a ride. He was amazed on how nice the bike looked.                                                                             In conclusion, I really enjoyed restoring this bike. The spray paint on the bike took a while to remove but in the end , the bicycle turned out nice. Until next time ,thanks for viewing my blog and stay tuned for more restorations.

Schwinn World Sport complete

Thanks for looking ,Tony