" Thank you for your detailed responses to my inquiry. You seem quite knowledgeable on the subject. I would like to have contacted you directly but no e-mail is listed."
The forum is for publicly discussing bikes and parts. No harm in asking any bike questions right here.
" It would be nice if the bike shops in my area were as willing to work with a customer as apparently they are in your area. Around here, the bike price is as it sits, and nothing is swapped or added for free. Except for adjustment and tuning of the stock bike, no work or screw turning is done without a labor charge."
I think it would be worth driving to a shop that is willing to work with you. You mention a Burley dealer is 100 miles away. Given how rare Burley dealers are, I'm guessing this is a bigger town. The parts swaps I am talking about are very simple and exact cost for cost part swaps. The shop is not losing money in these swaps. Just a few minutes of time. If a shop is not willing to do that on a $1000+ bike sale, they are not a shop I would buy from.
"1. GIANT OCR1 - 10 speed Shimano 105 group and 12-25 Cassette / FSA Gossamer Mega Exo 30/34/50T.
(I am not sure I really want to buy a Giant but the bike really feels good and handles well so I guess the Geometry is right for me. The shop is a small two man shop, easy to get along with, but I am not sure they really want to do a lot of parts swapping.)"
Giant makes fine bikes. I like the 10 speed aspect of this bike due to 9 speed for road bikes, the STI levers, seeming to disappear. Is this a triple or a compact (110mm bcd double crankset) since you list 50/34/30? Part swapping would consist of a 24 tooth inner chainring and a 12-27 cassette. 10 minutes tops for like for like parts.
"2. TREK PILOT 2.1 9 Speed Shimano 105/Sram PG950 12-26 Cassette/ Bontrager Race 52/42/30 Crank ---OR--- PILOT 2.1 s.p.a. which is a 10 speed Shimano STI shifter/ Shimano Ultegra Front & Rear/ Shimano 105 12-25 10 speed Cassette/ Bontrager Race 52/39/30.
(Larger shop with a very nice service plan from which I have previously purchased an MTB. They may be a little more willing to swap things around.)"
Trek makes fine bikes. I like 10 speed for road bikes due to the STI 9 speed levers seeming to disappear. Same parts swaps to get the lowest possible gears. 24 inner ring on crank and 12-27 rear cassette for the 10 speed bike. With 9 speed you can of course put on a mountain bike rear derailleur to clear the 32 or 34 big cog on the 11-32, 11-34, 12-34 9 speed rear cassette you choose. Really low gears then. But I don't think 9 speed for road bikes is the future. But if you go 9 speed, swapping to a mountain bike rear derailleur to clear the big cog and putting on a different cassette and putting on a 24 inner ring is 20 minutes or less total time and like for like parts so is a no money exchange.
"3. SPECIALIZED SEQUOIA ELITE 9 speed Shimano105 group/ Shimano HG50 12-25t Cassette/ Sugino Direct Drive 2 piece Crank set with 50/39/30t.
(Also a smaller shop with mixed experiences when visiting. I have also had very little experience with Specialized bikes other than their good reputation. I have not yet talked to them about a parts swap.)"
Specialized makes fine bikes. Comments on 9 speed and parts swapping apply here too.
"As I understand them, your recommendations are (do I have them correct?) &
A. I should buy and install a chainwather which will solve any problems with STI shifting to a 24 tooth front chainring. I like the looks of the N Gear Jump Stop."
I'm partial to chain watchers on all bikes to keep the chain from dropping to the inside. Doesn't happen often when the front derailleur is adjusted right, but it can happen no matter what. STI throws the chain to the inner ring very suddenly. With a 24 tooth inner ring, there is more open air for the chain to find the right spot to miss the 24 ring. A chain watcher is good insurance. When shifting to a 24 inner ring, plan ahead and get onto it before you are putting all of your pressure into the pedals.
" B. Rear Cassette For 10 speed Shimano STI Shifter, I will be limited to 12-27 in Shimano and for one or two teeth it is probably not worth changing the rear. For a 9 Speed Shimano STI Shifter I can probably go up to 32 or 34."
I think it is worth it to go to a 12-27 instead of a 12-25 cassette. Particularly with 10 speed since that is the biggest cassette. The 10 speed gearing is 12-13-14-15-16-17-19-21-24-27 or 12-13-14-15-16-17-19-21-23-25. I have no idea why Shimano even makes a 12-25 when you want bigger jumps when you get to bigger cogs. A 24x27 is 23.5". A 24x25 is 25.4". You will notice a 2" difference in gears at the low end. Not a huge difference but enough if you really need the lowest gears possible.
For 9 speed low gears are easy to get because of the 11-32, 11-34, 12-34 cassettes. STI will shift these just fine.
" C. Front Inside Chainring For any of the above bikes, the inside chain ring can be changed to a 24 tooth ring. You provided several sources for availability."
I think all of the triple cranksets you listed use a 130mm bcd for the two outer chainrings and a 74mm bcd for the inner chainring. Very, very common. 24 tooth inner ring will fit just fine.
" D. I will need to change the Rear Derailleur to a Deore LX or XT."
Not really need but highly recommended if you go with a 10 speed bike. The longer cage mountain bike rear derailleur will take up more chain wrap. By going to a 24 inner ring instead of 30 inner ring, you have more chain to wrap up when using the inner ring. By increasing the biggest rear cog size, you may/will need a longer chain, thus more to wrap up when using the inner ring. Its best to not have the chain hanging loose when using the inner ring with the smaller cogs. You won't use the inner ring with the smallest cogs much or often but its not a problem if the rear derailleur keeps the chain taut. The longer mountain bike rear derailleurs can wrap up more chain because they have a longer cage. And they will shift 9 or 10 speed cassettes the same. Rear derailleurs don't care about how many cogs there are in back. Except 8 speed Dura Ace but that is not relevant here.
On the 9 speed bikes you need to go to a mountain bike rear derailleur to allow the rear derailleur to clear 32 or 34 tooth rear cogs. The 105, Ultegra, Dura Ace long(medium) cage rear derailleurs will not clear anything above a 30 unless your bike has a very low mounted derailleur hanger. And you would want the extra chain wrap of the longer mountain bike rear derailleurs as eplained above anyway.
"Points for clarification &
1. You do not mention the Front Derailleur. With these changes, am I ok with the stock front Derailleur or is there also a change necessary in the front. You did mention in one of your points that with STI shifters the front derailleur will/may not work well. I believe this was in reference to changing to a whole mountain bike crankset. I am a little confused here."
STI shifters for road and the Shimano shifters for mountain bikes have a different cable pull to index the front derailleur. Shimano indexes the front derailleur. But since the bikes you list all have road cranks with road front derailleurs and STI road shifters, you will not have any problems with the front derailleurs as they come on the bike. Leave it alone. You may have some chain dragging on the bottom of the front derailleur when you try to use the new smaller 24 tooth inner chainring with the smallest cogs in back. Not a problem since you won't use the smallest cogs in back when using the inner chainring.
" 2. You also do not mention the chain. Because they advertise a 12-27 on an OCR1 and the one in the shop had a 12-25, one of the things I did when first considering a Giant was to call their customer service. When I spoke to them about lower gearing they also recommended the mountain derailleur but this was in reference to changing the rear cassette, and they recommended first checking with the crank mfr. So, I then called Full Speed Ahead FSA. They told me their cranks were compatible with a mountain derailleur and gearing, but they recommended staying away from Shimano chains due to their lack of sideways movement. They suggested a Wipperman or Connex Stainless Steel chain (
). Will I also need to consider changing the chain?"
Chains are chains. Get a 9 speed one if using a 9 speed cassette. Get a 10 speed one if using a 10 speed cassette. Shimano, SRAM, KMC, etc. all make decent enough chains. If you really think it matters, chains can be bought cheap from mail order catalogs and can experiment to your heart's content. Take whatever comes on the bike. BUT make sure the bike shop puts one of a suitable length(longer) on the bike if they put on a cassette with a bigger rear cog. Test it by shifting to the biggest cog in back and the outer/biggest chainring. For safety the chain MUST be long enough to work on this big-big combination.
" 3. I would like to end up with the smoothest and most trouble free shifting possible. In the Shimano long cage derailleur I have three levels to choose from. Can I expect better performance and less problems from the higher grade Shimano Devore LX?"
I have XT on my mountain bike because that is what came with it. I have cheap Deore on my touring bike because that is what I could find cheap mail order. My Mom has XT on her Trek WSD 2000 road bike from 2000 because that is what the shop switched the 105 rear derailleur to when they switched the cassette to a 12-34 when she bought the bike. Only cost was the price difference in levels of rear derailleurs and cassettes. No labor charge for switching. I have no idea if there is any performance difference or longevity difference in the different levels of rear derailleurs.
" 4. On your point Number 9 you say, You can go with 9 speed on a road bike. But the STI levers seem to be disappearing in the higher priced ranges. I would not advise this option for a road bike due to the disappearance of 9 speed STI levers. I am confused here because most of the Bikes (including 2 of the 3 models I am considering) seem to be 9 speed. Could you please clarify this for me? Without consideration of other plus factors and based on wanting lower gearing alone, would I not be better off with a 9 speed, considering the better selection of rear cassettes, etc?"
9 speed STI shifters do not seem to be available mail order. For a year or two now. I assume Shimano is still making them and they are available special order at full 100%+ retail MSRP through bike shops. For awhile anyway. Big bike factories can still get them OEM this year, and maybe, maybe next year too. 8 speed is only available in Sora STI levers now. The very lowest cost model. No more 7 speed STI anywhere. Tiagra is 9 speed this year, it used to be 8 speed. Will there be any STI levers made in 9 speed in 5 years? 5 years is not too long of a time frame. If you crash and completely break the right side STI lever, how difficult will it be to find a new one? Can you buy any 2006 model bikes with 9 speed Dura Ace or 9 speed Ultegra? These are Shimano's higher road lines.
The 9 speed cassettes are available in choices much better suited to touring and/or lower gearing than 10 speed cassettes. So far Shimano and SRAM and Campagnolo and IRD are not making 10 speed cassettes with 30 or 32 or 34 tooth big cogs. Shame. Hopefully this will change very soon. Hopefully. Seems to me there is a big niche a smart company would fill. Recreational road bicyclists who want really low gears because they live in really hilly or mountainous parts of the world and like riding new, fast, racy, light bikes.
" 5. One other question dealing with the TREK 2.1 and 2.1 s.p.a. Do you (or anyone else) have any experience with the Suspension Performance Advantage (s.p.a.) and the Buzz Kill handlebar offered by Trek in this model? I note the Derailleur are also upgraded to Ultegra, but I would be changing them anyway. So, I am wondering if the $200 increase in price is worth it."
No knowledge of the suspension stuff listed. You list the 2.1 SPA bike as having 10 speed shifters and gears. This could account for the $200 difference from a 9 speed bike.