1998 GT STS Lobo DH

[Yidaki]

Dear all,

I think I really need this thread to get this build going. But better late than
never :mrgreen:

So first up is the frame. It an STS Lobo in very nice condition. I will soon
get a new bushings kit for the frame but I don't think that it is time to renew
them. They look very good to me.

It will get some "updated" components. That means 9-speed XTR and not
8-speed. Also, most of the components will be more or less NOS like the brakes
and the forks.

It took me quite a while to figure out how to mount the rear brake. Searched
for some pics, also found and interesting thread here:

http://www.retrobike.co.uk/forum/viewtopic.php?t=190552

Still have to get the air out of the system and the right cable length. This
was only for me to check the "how-to". Won't be any problem in the future
I guess. Also made a little video how the rear brake performs now. Still need
to see in in "action" on the fully assembled bike when the rear shock is used.

[youtube]https://www.youtube.com/watch?v=vvkIgqmgfeg[/youtube]


More coming soon HOPEfully
Comments welcome

 

[GTRetroTechShop]

Looking good!

 

[mattiamerca]

alu-carbon gt "old" frames are always masterpieces!
and hope components are some of my favourite components...
I'm very curious to see the finished bike ... it will be wonderful

 

[Yidaki]

I am in a little bit of a struggle. I tried to install
a BB-M950 with 116mm axis length, an MRP chainguide
with some XTR FC-M950 cranks (5-arm). The problem:

The big ring is touching the frame! So I need a different
bottom bracket. I was thinking of a DuraAce 7703 in 118.5mm,
that is a bit longer on the right side. If not, I have to go
with a different crankset and a different bottom bracket ..

 

[boxxer]

Peaty ran the 950 so it should fit....

can you not wind the axle over toward the drive side by pushing the LHS Cup further into the frame?

 

[Baulz]

I am in a little bit of a struggle. I tried to install
a BB-M950 with 116mm axis length, an MRP chainguide
with some XTR FC-M950 cranks (5-arm). The problem:

The big ring is touching the frame! So I need a different
bottom bracket. I was thinking of a DuraAce 7703 in 118.5mm,
that is a bit longer on the right side. If not, I have to go
with a different crankset and a different bottom bracket ..

How much is it touching? Could you use some chainring spacers to move the ring out slightly?

 

[Yidaki]

I I don't use any spacer or anything on the left
side it is touching the frame bolt (the big one above
the bottom bracket shell).

With spacer/lockring it works on the left side but
the 48T chainring is messing around with the chainstay
of the frame when I pull the cranks at about 40%-60%.

Left side:

Unfotunately I only have older type Octalink bottom
brackets, no M952, only M950. There it is important
to tighten the bottom bracket just right, otherwise
it is not good. The M952 is a bit different here and
probably the solution to my problem. I want to try this
bottom bracket too:

 

[Yidaki]

status quo:

 

[Smithjss70]

Looking good man.

 

[Yidaki]

The bottom bracket is on its way and then I shall try
it with the M952 crankset. If it doesn't work, I'll have
to go square taper with a Syncros Revolution.

Still need a nice CS-7700 (I'm thinking of 11-25T).

Already have a saddle, But maybe I'll change the
seatpost to a black Syncros. Also, still need a
handlebar and grips. I can almost see the finish
line