bike rack installation question-stumpjumper

[Gregory Lotoczky]

Hey,
I have a Stumpjumper M2 and im trying to install a rear rack on it, a
blackburn tr-1 to be exact. The bike does not have any pre-drilled holes on
the tube near the rear hub. Is there any problem with causing permanent
damage to the frame if I drill the holes?
-Greg

 

[The Nelson Paradigm]

"Gregory Lotoczky" <[email protected]> wrote in message
news:[email protected]...
> Hey,
> I have a Stumpjumper M2 and im trying to install a rear rack on it, a
> blackburn tr-1 to be exact. The bike does not have any pre-drilled holes
on
> the tube near the rear hub. Is there any problem with causing permanent
> damage to the frame if I drill the holes?
> -Greg

I wouldn't. The SJ M2 is a race frame and Specialized did not intend riders
to use cargo racks on them. The drop-outs are a minimalist design and
drilling for a rack would seriously weaken them.

If they are the type with an opening, you might be able to find some
Blackburn Campy rack adapters. They fill the opening, creating a place to
bolt the rack.

Another thought is using the plastic coated metal bands around the seatstay
just above the dropouts. This worked on my 96 Ground Control.

If you bougtht the bike/frame new you'll be voiding the warranty.


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[bomba]

Gregory Lotoczky wrote:

> Hey,
> I have a Stumpjumper M2 and im trying to install a rear rack on it, a
> blackburn tr-1 to be exact. The bike does not have any pre-drilled holes on
> the tube near the rear hub. Is there any problem with causing permanent
> damage to the frame if I drill the holes?

Very much so.

If you don't have rack mounts, look for racks that attach solely to the
seat post, like the Blackburn SP2.

 

[Kristopher Jones]

Gregory Lotoczky wrote:

>Hey,
>I have a Stumpjumper M2 and ... Is there any problem with causing permanent
>damage to the frame if I drill the holes?
>-Greg
>

Whoa, cowboy! Put your drill away right now!!! You might weaken the
frame, and you will void the warranty.

Your options are
1. seatpost mounted rack;

2. the little plastic coated metal straps that come with most of the $20
racks (and are overflowing out of a drawer somewhere at every bike shop
in the Western world);

3. Beefier thick alloy clamps designed to attach a rack to an
eyelet-less frame - the alloy clamps will last longer then the tin
straps if you are carrying a load. The straps will break eventually they
are subject to much stress - they are designed to hold the front -
facing stays to the top of the seatstays, which is a very light load. If
you use the straps to hold the bottom of the rack then they are
responsible for carrying a large part of your load.

I don't know who makes those clamps, though, or where you can get them.

Kris

 

[Gregory Lotoczky]

Thanks for the warnings. (I can almost visualize the look of panic in your
eyes as you wrote the replies). I will check into the seat mounted racks.
-Greg

"Kristopher Jones" <[email protected]> wrote in message
news:[email protected]...
>
>
> Gregory Lotoczky wrote:
>
> >Hey,
> >I have a Stumpjumper M2 and ... Is there any problem with causing
permanent
> >damage to the frame if I drill the holes?
> >-Greg
> >
>
> Whoa, cowboy! Put your drill away right now!!! You might weaken the
> frame, and you will void the warranty.
>
> Your options are
> 1. seatpost mounted rack;
>
> 2. the little plastic coated metal straps that come with most of the $20
> racks (and are overflowing out of a drawer somewhere at every bike shop
> in the Western world);
>
> 3. Beefier thick alloy clamps designed to attach a rack to an
> eyelet-less frame - the alloy clamps will last longer then the tin
> straps if you are carrying a load. The straps will break eventually they
> are subject to much stress - they are designed to hold the front -
> facing stays to the top of the seatstays, which is a very light load. If
> you use the straps to hold the bottom of the rack then they are
> responsible for carrying a large part of your load.
>
> I don't know who makes those clamps, though, or where you can get them.
>
> Kris
>