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General Category >> Technical >> Carbon Aero Riser
https://rbentonline.org/YaBB.pl?num=1250560035

Message started by jcsadowski on Aug 17^th, 2009, 8:47pm

Title: Carbon Aero Riser
Post by jcsadowski on Aug 17^th, 2009, 8:47pm

The CA 2.0 is a wonderful bike except the handlebars are right in my line of vision. I have about 6 inches clearance for my knees. It seems like the bars could go down and back a little. Any Ideas???

Title: Re: Carbon Aero Riser
Post by goatstick on Aug 17^th, 2009, 9:07pm

There are both short/long bars and short/long risers available. I have a large Corsa & CA2 and I still use the short bars and short riser on both, but I have the seat laid back pretty far. This means my shins clear by about 2mm *with* a half-inch spacer in the riser clamp, but it works very well for me. Note that the CA riser is I think 1 1/8" and the Corsa riser is 1". Also the short riser has a shorter 'reach' or length past the bend in the riser. Plus I use barcon shifters with a pair of Specialized P1 Overendz Bar Ends that I actually hang on to, so I don't really use the handlebar much for grip (I set the brake calipers back to match). Maybe you might want a short riser and long bars???

Title: Re: Carbon Aero Riser
Post by FlyingLaZBoy on Aug 18^th, 2009, 1:03pm

jcsadowski wrote:

It seems like the bars could go down and back a little. Any Ideas???

A hacksaw did the job on the Xstream proto... ;) [smiley=whistling.gif]

Title: Re: Carbon Aero Riser
Post by jcsadowski on Aug 18^th, 2009, 1:34pm

I have PC&F looking into options for me. We will see if they come up with any different options.

Title: Re: Carbon Aero Riser
Post by jcsadowski on Aug 18^th, 2009, 2:44pm

Quote:

A hacksaw did the job on the Xstream proto...

Funny, that is what Bachetta said. OR a shorter riser is $40.00 but it might shorten the reach by 1".

Title: Re: Carbon Aero Riser
Post by goatstick on Aug 18^th, 2009, 4:45pm

The short riser not only has a shorter height but has a shorter reach also. So if height is your only concern, the hacksaw option will likely work. Except maybe use a pipe cutter instead of a hacksaw for a far cleaner cut.

Title: Re: Carbon Aero Riser
Post by jcsadowski on Aug 18^th, 2009, 4:49pm

If by shorter reach you mean "less forward" Then that sounds like the better option. It will cost me $40.00 to find out.

Title: Re: Carbon Aero Riser
Post by goatstick on Aug 18^th, 2009, 5:05pm

Correct - 'less forward'. My Corsa came with the long riser and short reach bars. They introduced the long reach bars after I bought mine. I later bought the short riser. I looked for the old long riser to provide measurements for you but I haven't found it yet. The Bacchetta forum I think had a thread about this that provided measurements but you could just contact Bacchetta and they could likely give them. I'd say to get a precise measurment on the clearance you have fore/aft and up/down with shin clearance first. As I mentioned, with a 1/2" spacer added to the short riser, my shins clear by a couple of mm. It took losing a couple chunks of skin off my shins before I learned to deal with it. Still have a couple of shin divots left as a reminder. :^)

Title: Re: Carbon Aero Riser
Post by jcsadowski on Aug 18^th, 2009, 5:15pm

First I am going to go home and measure the riser and handlebars on the giro. Then I will compare sizes.

Some searching on the Bachetta forum won't hurt either.

Thanks

Title: Re: Carbon Aero Riser
Post by FlyingLaZBoy on Aug 18^th, 2009, 6:25pm

goatstick wrote:

... the hacksaw option will likely work. Except maybe use a pipe cutter instead of a hacksaw for a far cleaner cut.

Ah, yes, I DID use a pipe cutter instead of a hacksaw to cut the basic tube shorter... however, I DID use the hacksaw to cut a new compression slot!!!! [smiley=thumbsup.gif]

Title: Re: Carbon Aero Riser
Post by jcsadowski on Aug 18^th, 2009, 8:05pm

After reading the Bachetta forum and measuring the Giro riser, which is a short riser, I have a short riser on order for the CA2.0.
I will let you know how it goes.

Title: Re: Carbon Aero Riser
Post by goatstick on Aug 18^th, 2009, 8:25pm

Great! Just in case... The CA riser is 1.25" OD, unlike the Corsa which is 1" OD.

And FLB, didn't mean to criticise, but good to hear about the pipe cutter. I cut the 1/2" spacer I used for the short riser from my long riser, back when I tried to do that first. The spacer wasn't past the end of the compression slot so it made a great spacer with its factory-made slot. :^)

Title: Re: Carbon Aero Riser
Post by jcsadowski on Aug 18^th, 2009, 9:00pm

Quote:

The CA riser is 1.25" OD, unlike the Corsa which is 1" OD.

Good point. I hade considered trying the riser on the giro. Bet it is 1" also.

I will get mine from the Factory.

Title: Re: Carbon Aero Riser
Post by goatstick on Aug 18^th, 2009, 9:59pm

I suspect the Giro has a heavier-duty fork & steerer than the Corsa. I know the Agio Riser is 1.25". I figure they were trying to match the Corsa fork steerer, which required a 1" riser.