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Old 09-18-11, 12:55 PM   #1
AndrewClaycomb
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Current Production 7 Spd Brifter? Sirrus Drop Conversion

It seems like there have been several threads on drop conversions lately, and well... here's another one. I have a 2011 Sirrus and I'm planning the conversion. Ideally I would like to go the STI/brifter route but I know bar end shifters are an option as well.

Is there a current production 3x7 brifter set? Would a 3x8 set work? And I've read here that some people have had to replace the front derailer. Does anybody know if the stock Tourney derailer will be compatible?

How big of a pain is it to change gearing from 3x7 to 2x10? (I'm guessing it would be over my conversion budget of $200-$300.)

Otherwise I know that travel agents will be necessary, or if I have to use bar end shifters, then there are levers designed for linear pull brakes. (I'm really hoping not to have to use bar end shifters though.) I'm also planning on trying a 70mm stem (stock is 120mm) and my lbs will let me swap stems to find the right one.

Anything else I need to think about other than bars, tape and cables?
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Old 09-18-11, 01:56 PM   #2
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AFAIK, there is no 7spd brifter currently being produced. I know there is a 7 speed Sora 3300 brifter. You should look into it.
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Old 09-18-11, 02:21 PM   #3
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Not to be daft, but there is a 7 speed Sirrus with Tourney? I though they started with 8 speed and one of the A's (Altus or Acera??). Might wanna confirm lest you make an oops.

And depending on your shopping skills and desired brifters, I have gone from 3x8 to 2x9, including brifters and crankset, within your $2-300 budget. I quickly undid it, but it can be done. I think I had about $215 in Mircoshift brifters, curly bar, FSA crankset, 105 RD, Microshift FD, 103mm IRD BB, and cables (Jagwire, very nice).
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Old 09-18-11, 02:29 PM   #4
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Quote:
Originally Posted by AlphaDogg View Post
AFAIK, there is no 7spd brifter currently being produced. I know there is a 7 speed Sora 3300 brifter. You should look into it.
I've found a source for a 3300 right shifter, but I can't find a 3303 left shifter (3 speed.) And that's assuming they match. The 3300 left shifter is a 2 speed.

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Originally Posted by RollCNY View Post
Not to be daft, but there is a 7 speed Sirrus with Tourney? I though they started with 8 speed and one of the A's (Altus or Acera??). Might wanna confirm lest you make an oops.

And depending on your shopping skills and desired brifters, I have gone from 3x8 to 2x9, including brifters and crankset, within your $2-300 budget. I quickly undid it, but it can be done. I think I had about $215 in Mircoshift brifters, curly bar, FSA crankset, 105 RD, Microshift FD, 103mm IRD BB, and cables (Jagwire, very nice).
I think that was how it was on the 2010 model. Mine has a SRAM 7 speed cassette (12-32t) with an Altus rear derailer and a Tourney front derailer. I wish it was an 8 speed...

What did you not like about your drop conversion?

Last edited by AndrewClaycomb; 09-18-11 at 02:34 PM.
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Old 09-18-11, 03:10 PM   #5
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Mine wasn't a conversion. Started with 2010 Sirrus, upgraded all parts, compact road crank, SRAM X9 shifters & Rear der, Easton wheels. Decided to buy frame and move all my good parts to it (had a set of Rival calliper brakes I got cheap, too). When I built it, I built it with drops 1st, with the microshift and 105 stuff mentioned above, basically as a pure road bike. I saw no real advantage to it, so I took it all off and put my X9 MTB parts and flat bar back on. There was no significant change in speed based on bars, and I like the hand positions on flats over drops.
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Old 09-19-11, 10:01 PM   #6
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Quote:
Originally Posted by AndrewClaycomb View Post
It seems like there have been several threads on drop conversions lately, and well... here's another one. I have a 2011 Sirrus and I'm planning the conversion. Ideally I would like to go the STI/brifter route but I know bar end shifters are an option as well.

Is there a current production 3x7 brifter set? Would a 3x8 set work? And I've read here that some people have had to replace the front derailer. Does anybody know if the stock Tourney derailer will be compatible?

How big of a pain is it to change gearing from 3x7 to 2x10? (I'm guessing it would be over my conversion budget of $200-$300.)

Otherwise I know that travel agents will be necessary, or if I have to use bar end shifters, then there are levers designed for linear pull brakes. (I'm really hoping not to have to use bar end shifters though.) I'm also planning on trying a 70mm stem (stock is 120mm) and my lbs will let me swap stems to find the right one.

Anything else I need to think about other than bars, tape and cables?

I'd look to see if you could fit either an 8 or a 9 speed cassette then look for a set of 3 X 8 soras. You are also going to have to change the front Derailur to an IRC Alpina which plays nice with intermediate rings.

Last edited by Sirrus Rider; 09-19-11 at 10:17 PM. Reason: content correction
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Old 09-19-11, 10:23 PM   #7
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I promise I'm not making it up, and I bought it new in the store. Go HERE and look at the tech specs for the base model.

Irritatingly, it looks like the 2012 model has an 8 speed cassette again.
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Old 09-20-11, 04:50 AM   #8
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Thanks for the link, and sorry if it felt like we were doubting. I started with a 7 speed cassette on a Diamondback, and wasn't a fan, got a Sirrus with 8, and upgraded it to 9. It is all easy to change, and you might want to seriously consider doing so, especially if buying new shifters.
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Old 09-21-11, 08:11 PM   #9
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Instead of dealing with the inevitable frustration of making my components work with a conversion, I bought a new takeoff group, so I'll be switching out to a 9 speed cassette with a double chain ring. The group is coming with a drop bar, factory installed tape, and cables attached, so all I'll need are travel agents (which I ordered) and a short stem. Hopefully I'll get this all done over the next week.
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Old 09-24-11, 08:36 PM   #10
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Quote:
Originally Posted by AndrewClaycomb View Post
Instead of dealing with the inevitable frustration of making my components work with a conversion, I bought a new takeoff group, so I'll be switching out to a 9 speed cassette with a double chain ring. The group is coming with a drop bar, factory installed tape, and cables attached, so all I'll need are travel agents (which I ordered) and a short stem. Hopefully I'll get this all done over the next week.
Good Job! Post pics when you have everything installed and dialed in.
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