Don,
I've been and had a browse of your group, and it does seem
to be going well - lots of interesting posts; places for
photos; no political rows to wade through. It's a great
group and I can see why people like it.
I didn't mean to offend - it's just a bugbear of mine that
if I ever need to search the internet for specific
information it generally gets harder if the people
discussing it are on closed groups. And mostly I use
newsgroups for problem-solving and for this, diversity often
seems to be the key.
For example quite a lot of your post below is of interest
to me. I built a (metal) boom a couple of years back and
had to think about many of the spacing / angle issues that
you discussed - I didn't realise they were even issues
until I thought about them quite hard. I also have problems
with the boom on my bike slipping - it's not a carbon boom
but it has a plastic finish that slips occasionally. I've
been meaning to do a search / ask the group for their
solutions for some time now.
Regards,
AC
On Fri, 25 Jun 2004 09:20:09 -0700, Don Smith wrote:
> AC, Let me give you an example of some technical info one
> might receive on the BaronOwners group regarding the
> installation of a carbon fiber boom on a Baron, and then
> you decide if this is information you would like to have
> if you had a Baron and were contemplating the purchase of
> a carbon boom for it:
>
> Let`s say that someone had purchased a Baron Discus,
> which has a triple crank, and after riding it for a
> couple months, decided they would like to make the bike a
> bit lighter. They notice that Optima is now selling a
> carbon fiber boom for the Baron and would like to
> purchase one for their bike. If they just go ahead and
> purchase the carbon boom without prior knowledge what
> they will need to do to make it work, they may be in for
> a rude awakening when they put it on the bike, and here
> is why....the deraileur tube is located in the middle of
> the boom,(hopefully they will eventually be manufactured
> offset)while the stock boom has an offset deraileur tube.
> Even at maximum adjustment, a deraileur such as an
> Ultegra triple, will not be able to shift the chain onto
> the large chainring due to the location of the deraileur
> tube...it is too far away. To get around this problem,
> the deraileur must be moved closer to the chainrings.
> This can be accomplished by making a spacer from a piece
> of aluminum tube that has an O.D. of 1-3/8" and an I.D.
> of 1-1/8"....it will need to be about 5/8" wide, with a
> slot cut through one side. Slide the spacer over the 1-
> 1/8" deraileur tube, then slide a deraileur with a 1-3/8"
> clamp over the spacer and clamp it down in the proper
> position. This will effectively move the deraileur close
> enough to the chainrings to allow the deraileur enough
> range to shift the chain onto the large ring. Bottom
> bracket spindle length should be about 118mm. Other
> things to consider are...there is no cable stop on the
> carbon boom for the deraileur cable, but a 1-1/8" clamp-
> on cable stop works well. Also, since the finish of the
> carbon boom is so smooth and shiny, it tends to slip
> sideways when enough pressure is applied to the pedals.
> The cure for this, is to scuff up the portion of the boom
> that fits into the frame with a ScotchBrite pad and then
> spray the scuffed up area with 3M Super 77 spray adhesive
> or something similar and then insert it into the frame
> tube after letting it dry a minute or two...this will
> cure the slipping, while still allowing the boom to be
> easily removed again if necessary for some reason. Also,
> finding a high quality deraileur with a 1-3/8" clamp is
> extremely difficult, if not impossible. Best thing to do,
> if a Dura Ace/Ultegra quality deraileur is preferred, is
> to purchase a braze-on deraileur and a 1-3/8" clamp
> adapter. Anyway, one thing that should be mentioned, is
> that the low Baron`s different frame geometry requires
> the deraileur tube to be at a more radical angle than the
> standard Baron. Kamil at Velokraft(manufacturer of the
> carbon booms sold by Optima)can make the carbon boom with
> a custom deraileur tube angle.....30 degrees works well
> for the low Baron...
>
> Don
>
> anonymous coward <
[email protected]> wrote
> in message
> news:<
[email protected]>...
>> > AC, I`m sure all our members would disagree with your
>> > view of our group, or they wouldn`t have joined.
>>
>> Well, good luck to you.
>>
>> > We have some members in the BaronOwners group, myself
>> > included, that are very knowledgeable with this
>> > particular bike, and can offer valuable technical
>> > advice and information to those Baron owners that
>> > seek it.
>>
>> Are Baron's so very different from other lowracers, that
>> there's no transfer?
>>
>> > I think its very convenient to have a place to go to
>> > when you need good reliable info or technical
>> > assistance from other owners of the same bike that you
>> > ride...
>>
>> It may be that I'm missing something, but I never find
>> it easy to search Yahoo groups, in the way that Google
>> can scan the newsgroup archives. For a while I thought
>> very seriously about buying a Baron, but I'd probably
>> never have found any posts about them that were sent to
>> a Yahoo group.
>>
>> AC