Bike Boom refurbished bikes: Giant Quasar road bike

Are you looking to repair this bike?
Links below for parts you can buy now on amazon.

Over the years we repaired thousands of these and became experts in finding alternatives to original bike parts.
Buying parts for older bikes is confusing, as most of the original parts have been discontinued.
We use these parts everyday and created this list to make it easier for you to repair your bike.

Shifter cables and housing: https://amzn.to/38g40ol

Brake cables and housing: https://amzn.to/2DZqPPk

Handlebar Tape: https://amzn.to/2qxHiaf

Rear Wheel: https://amzn.to/2RuAB3X

Front Wheel: https://amzn.to/2PuFaIM

Tires (good): https://amzn.to/2s9eipE (similar look, casual use, choose 27x1 1/4)

Tires (better): https://amzn.to/33YwOyl (super flat resistant and fast rolling, choose 27x1.25 or 27 1 1/4)

Shifters: Front and rear (right and left): https://amzn.to/347vWrv

Rear Derailleur (good): https://amzn.to/2DYUOXF (choose w/ direct attachment)

Rear Derailleur (Better): https://amzn.to/2PupyVA (choose GS type)

Front Derailleur (good): https://amzn.to/3415IXm (choose double)

Front derailleur (better): https://amzn.to/2LAI262 (better quality, fit and finish)

Bottom Bracket: https://amzn.to/2RydlSI (Likely 68x122.5 but must measure spindle length before purchase)

Crank (good): https://amzn.to/2Yw7miQ (better quality fit and finish, will likely need a new bottom bracket)

Crank (better): https://amzn.to/2rg0YQx (lesser quality option, likely will not need a bottom bracket)

Freewheel: https://amzn.to/2qx4c1t

Headset: https://amzn.to/38EkfvQ (Choose 27.0 but it's better to remove crown race and measure inside diameter for sure)
Pedals: https://amzn.to/3593fvC (Modern style)

Pedals: https://amzn.to/2DZbNZP (same style as original)

Chain: https://amzn.to/38ayVCI (fits 5, 6, 7 and 8 speeds)

Brake pads (good): https://amzn.to/36eEldP (casual use)

Brake pads (better): https://amzn.to/38ixNN7 (Improved performance and wet/cold condition)

Brakes (rear): https://amzn.to/2P31N8o

Brakes (front): https://amzn.to/2Prqcn2

Brake Levers: https://amzn.to/2LQALz9 (similar to original

Brake Levers: https://amzn.to/356h3Hc (modern style)

Mid-late 80's Giant Quasar. A super nice 10 speed (actually 12 speed) we had in the store earlier this year. had very low miles on it, we gave it a tune up and replaced cables and bar tape. Great paint. Has indexed suntour shifters, derailers and a sugino crank.

This is one of the first giant branded bikes after giant stopped producing bikes for schwinn.

In the early 80's schwinn hired giant, which was a tiny bicycle company in taiwan, to manufacture light weight bikes for them. before that panasonic made bikes for schwinn. By the mid 80's schwinn was in bad economic shape and moved production back to the US. Giant, which was a huge factory by then, had the knowledge and started producing light weight bikes under their own name.

Today, Giant is the 2nd largest bicycle manufacture in the world, Merida being the largest.