Gthoro

Hi all,

This bike was posted locally on a facebook bst page. I know very little about BMX bikes, but this one seemed too good to pass up for the price. Based on some posts I've read I believe it is a 1983 model. If you have any info about the bike or any idea of the ballpark value of it, I'd really appreciate it.

Thanks,
Greg

plonz 

That's a very cool GT. Definitely looks to be an 81-83. I really don't know the value of these but there are a few period incorrect pieces that might lower the value to a collector. Rear pegs have to go. Brakes are not correct for the bike and chain ring looks too modern as well.

if it's cheap enough, buy it, put the ramp out on the sidewalk and get rad!

miamijim

A bit of a mish mash going on as previous noted. One piece cranks are a dead give-away that's its and entry level model. Add-ons like the zap pads and uni seat may have value.

eBay completed listings suggest $300 +/-

Gthoro

I appreciate the feedback!

Thanks!

plonz 

I wouldn't say this is always the case, at least prior to '83. There were many high end BMX bikes assembled frame up before the "3 piece" crank became a popular add. And most of the great frames had a bottom bracket shell for a one piece, requiring a kit to use a 3 piece. I had a couple of buds who did this "upgrade" but a lot of us stuck with our one piece Sugunos and Takagis.

miamijim

Good point. I remember the conversion BB's well.

OldsCOOL

My son has a PK Ripper circa '81 that came with a one-piece crank and removeable chainring. Definately NOT entry level.

sloar 

Just about all the complete bikes came with one piece cranks. The redline profile crank and the hutch crank being the most popular were aftermarket add ons. They came with their own bottom brackets that used press in one piece bearing cups. I was pretty seriously into these bikes in the 80's and most people who were use to buy the frames and build them up with quality aftermarket parts. Right now 80's bmx and freestyle bikes are hot. If it were mine I'd change the brakes to the appropriate dia comps and ask $500. There's a lot of collectors snatching these up.

miamijim

I came across a 1983 GT Pro article and it was equipped with one piece cranks. I'm curious about the wheels on this one as the hubs appear to sealed.

SkyDog75

I can't help much with current value, but eight-year-old me would've been all over a chrome GT in 1983.

amusingbikes

I couldn't agree more. I see that this is a racebike but I'm looking at some GT Pro Performers in Dayglo Pink and most of them have one piece cranks. If you had a nice one then you had a disc and chainring on that one piece crank. Around the mid to late 80's racing bikes used mid or mid conversions to accommodate the separate crank arms but freestylers would bend the lightweight cranks. It was better to use one piece sugino cranks. They were not that much more costlier than a cheaper crank.