JaccoW

Welcome to the new and revised opening post of my build log of the 1992 Koga-Miyata 'Graveller' bike in 66cm.



This thread originally started with a 66cm 1993 Koga-Miyata World Traveller frame of the same size with a dented top tube but in 2021 I found a similar frame in my size in the form of a 1992 Koga-Miyata Traveller for €20+fuel. Starting from page ~3 things start focussing on the future 'Graveller' but there is plenty of details and history of the brand and model up till then. This bike is a touring frame with cantilevers in modern sizing and comes in a wide variety of sizing, but all of them are made from Koga-Miyata's 'oversized' chromoly Hardtlite® FM-1, spiral spline triple-butted tubing with a unicorn fork from the same tubing. In short, it's big, it's strong and relatively lightweight. The bike is essentially the same weight as most modern touring bike frames in smaller sizes and has shown to be pretty stable even when loaded up.

The Traveller and the World Traveller are essentially the same bike but with different parts from the factory. Not that we care about that here since you will see this bike will be rebuilt from the ground up, leaving only the frame and bottom-bracket dynamo shifter.

Here is what it looks like now but updates will keep coming.

Current setup in March 2024:


This is what I started with:


Here is what the bike looked like from the factory:



ORIGINAL STARTING POST:
I didn't need another project but this one was in my list of 'would like to have'* bikes and for €30 I couldn't pass up on it.

The beginning:
It started with an ad for a "Ladies bike"
That's not a ladies bike. That does look however like a suspiciously large Koga Touring frame! Most of these came with triple-butted tubing. The child seat clamped to the front however looks like it might have crushed the top tube. :X
So a quick browse through the older Koga brochures told me this was very likely a GlobeTraveller or Randonneur. I contacted the seller and he told me it was a WorldTraveller and yes, it did look like some idiot before him mounted it and crushed the top tube.

While contemplating what to do I consulted the Bicycle-Mechanics subforum (That's a lost case. Why is that your dream bike?) and the Framebuilders subforum (You can ride that without worry easily. Just remove the carrier.) and asked a neighbour who was in the area of the seller to pick it up for me.

Start of the project:
So now I have a 1993 Koga-Miyata WorldTraveller before me in a 66cm frame size. I have always wanted to try a larger frame and here we are.



More pictures soon.

* = List of these bikes: