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How Would You Gear This Build?
Let's say you were going to do a mechanical disc drop bar build this bike to be an all arounder to include everything from light touring in the mountains to some moderate paced group rides. What shifters, crank and derailleurs would you use?
https://lynskeyperformance.com/gr300...cable-routing/ |
That Lynskey 300 is a nice frame/fork - lots of possibilities for different types of set-ups and a variety of riding styles.
I say 46/30 2x10 crank with an 11-36 cassette and Gevenalle shifters. The Gevenalle shifters are conveniently-located on the hoods and allow for a single shift that will move up/down as many cogs as you want in one sweep. Gevenalle CX 10 speed levers - these work with Shimano 10 speed road RD - not sure if the Shimano GRX RD below is road or MTB. The Gevenalle GX levers are compatible with Shimano Dyna Sys MTB RDs. The CX and GX are available for a 2x set-up - the image below is for 1x https://www.gevenalle.com/wp-content..._5635-Edit.jpg Shimano FC RX400-10 - 46/30 crank https://bike.shimano.com/content/dam...1_310_310.jpeg Shimano RD-RX400 with clutch https://bike.shimano.com/content/dam...1_310_310.jpeg FD-RX400 https://bike.shimano.com/content/dam...1_310_310.jpeg CS-HG50-10 cassette - 11/36 https://bike.shimano.com/content/dam...1_310_310.jpeg |
I'm not knowledgeable about the shifters. I don't enjoy drop bars (I have mtb shifters on butterfly trekking handlebars on my gravel touring bike). But I know what gearing I want/need in the mountains. I like the 46/30 crank with a 10-42 cassette. I think the brand is SRAM.
Caveat: I don't do group rides. I rarely get out of the saddle to climb. I'm in decent riding condition but at the end of a 50 mile ride I can sprint to 20 mph for the last half mile if I have a decent tailwind. I'm 67, and prefer to sit and spin up a 5 mile grade, especially if I have luggage. |
If I were in your shoes, I would guesstimate what the lowest gear-inch number I would comfortable with, then the highest. That would give you a couple of numbers to aim at. Then, decide how many chainwheels you want to deal with, 1, 2, or 3. Given that you live in Louisississippi, there might not be too much climbing and you might be happy with around 26 GI on the low end and maybe 110 GI at the high end.
Good luck |
Before we go any further, did you actually buy this frame or is this just an intellectual exercise?
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Originally Posted by Happy Feet
(Post 21396772)
Before we go any further, did you actually buy this frame or is this just an intellectual exercise?
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Originally Posted by jlaw
(Post 21395609)
That Lynskey 300 is a nice frame/fork - lots of possibilities for different types of set-ups and a variety of riding styles.
I say 46/30 2x10 crank with an 11-36 cassette and Gevenalle shifters. The Gevenalle shifters are conveniently-located on the hoods and allow for a single shift that will move up/down as many cogs as you want in one sweep. Gevenalle CX 10 speed levers - these work with Shimano 10 speed road RD - not sure if the Shimano GRX RD below is road or MTB. The Gevenalle GX levers are compatible with Shimano Dyna Sys MTB RDs. The CX and GX are available for a 2x set-up - the image below is for 1x https://www.gevenalle.com/wp-content..._5635-Edit.jpg Shimano FC RX400-10 - 46/30 crank https://bike.shimano.com/content/dam...1_310_310.jpeg Shimano RD-RX400 with clutch https://bike.shimano.com/content/dam...1_310_310.jpeg FD-RX400 https://bike.shimano.com/content/dam...1_310_310.jpeg CS-HG50-10 cassette - 11/36 https://bike.shimano.com/content/dam...1_310_310.jpeg Wow, I really appreciate the time you put into providing that response. That is close. I will need a clamp on vs braze on FD. I'd like to drop the crank down a few notches. If there were a path to a 42-26 and 11-36, I think that would be close to ideal. I'd need substantial chain wrap capacity in my RD for that. I could make do with a 40-26 and 11-34. That puts a lot of Mid cage derailleurs into play. Gevenalle just announced that they are expecting a shipment of new products in May. That means I could pair them with a Shimano Mountain drive train. That opens a lot of doors. From what I understand SRAM Apex 2x10 will work with any of their exact actuation derailleurs. That brings their mountain derailleurs into the picture. As far as I can tell, those are the only two paths for a the kind of gearing I want with mechanical road drop bar shifters. |
Originally Posted by Paul Barnard
(Post 21397035)
Wow, I really appreciate the time you put into providing that response. That is close. I will need a clamp on vs braze on FD. I'd like to drop the crank down a few notches. If there were a path to a 42-26 and 11-36, I think that would be close to ideal. I'd need substantial chain wrap capacity in my RD for that. I could make do with a 40-26 and 11-34. That puts a lot of Mid cage derailleurs into play.
Gevenalle just announced that they are expecting a shipment of new products in May. That means I could pair them with a Shimano Mountain drive train. That opens a lot of doors. From what I understand SRAM Apex 2x10 will work with any of their exact actuation derailleurs. That brings their mountain derailleurs into the picture. As far as I can tell, those are the only two paths for a the kind of gearing I want with mechanical road drop bar shifters. I am a fan of super-compact doubles for all-around bikes. I am not riding in a pace line at 30 mph so I don't need a 50T chainring. As such, when I did a vintage frame rebuild I used a 2x10 set-up with a SRAM x5 39-26 crankset - affordable and effective. It works well for me and I don't spin-out until well over 20 mph - plus lots of hill-climbing gears. I ride in the 39T most of the time and can run up/down the 11-32 cassette - except for the 39-32 combo where I can hear the chain complaining. This x5 uses an external, threaded BB - a simple install and no problems in about 2000 miles of riding. Since the FD is friction with the Gevenalle shifters you should have many FD options that can be made to work without compatibility issues. I suggest that you call Gevenalle to inquire about the specific drive train that you want to use before you buy anything. You may need to adjust the chain line a bit using shims - a call to Lynskey with your specifics would help answer this question. I don't know if SRAM still makes this particular 39-26 crank set - but there are plenty of possibilities when you search. The 42-28 below might work for you - $150. https://cimg6.ibsrv.net/gimg/bikefor...5945e433bd.jpg https://www.amazon.com/Truvativ-X-0-.../dp/B004HNVERE https://images-na.ssl-images-amazon....AC_SL1500_.jpg |
I don't get it, what happened to your last Lynskey?
And given your experience with that one, you should already know what you want if you felt the last setup lacked anything. Or, do you just want a bike with drop bars to park next to the one with flat bars? https://www.bikeforums.net/touring/1...oad-build.html I largely agree with this post:
Originally Posted by Pratt
(Post 21395823)
If I were in your shoes, I would guesstimate what the lowest gear-inch number I would comfortable with, then the highest. That would give you a couple of numbers to aim at. Then, decide how many chainwheels you want to deal with, 1, 2, or 3. Given that you live in Louisississippi, there might not be too much climbing and you might be happy with around 26 GI on the low end and maybe 110 GI at the high end.
Good luck I have toured in the mountains and I think a low gear of about 20 gear inches is about as high as you want, 16 would be nicer but I had a preference for a road triple so when I built my Lynskey I was limited to no smaller that a 24T granny gear. For touring I like bar end shifters, but I recognize that some people do not like them so if you have a preference, just follow your preference. My Lynskey with a road triple where I have a 24T granny and 32 big sprocket on my 11-32 cassette has a low gear of 20.7 inches. That bike has a 46T big chainring and with the 11T sprocket in back, high gear is 115.5 gear inches. Other than that, I have not re-read my comments from a couple years ago at the thread I listed above, but I think it unlikely that I would say anything different today than I did back then, I still love my Backroad build. |
Originally Posted by Tourist in MSN
(Post 21397331)
I don't get it, what happened to your last Lynskey?
And given your experience with that one, you should already know what you want if you felt the last setup lacked anything. Or, do you just want a bike with drop bars to park next to the one with flat bars? https://www.bikeforums.net/touring/1...oad-build.html I largely agree with this post: except that I would say you want about 20 gear inches for a low gear. And I think it should have a triple crank unless you have a specific reason to want a double. I have toured in the mountains and I think a low gear of about 20 gear inches is about as high as you want, 16 would be nicer but I had a preference for a road triple so when I built my Lynskey I was limited to no smaller that a 24T granny gear. For touring I like bar end shifters, but I recognize that some people do not like them so if you have a preference, just follow your preference. My Lynskey with a road triple where I have a 24T granny and 32 big sprocket on my 11-32 cassette has a low gear of 20.7 inches. That bike has a 46T big chainring and with the 11T sprocket in back, high gear is 115.5 gear inches. Other than that, I have not re-read my comments from a couple years ago at the thread I listed above, but I think it unlikely that I would say anything different today than I did back then, I still love my Backroad build. I have that bike still and I love it. It is the best bike I have ever owned. Over the past two years I have been working on setting up a camp in MS. That is now move in ready. I want to keep a bike over there. It is right on the edge of Desoto National Forest where there are miles upon miles of gravel roads. The folks from my old club do mixed paved and gravel sport rides, and I am ready to join them. I am not averse to a triple at all, but in digging around it looks like it would be more difficult to pull off a drop bar triple with the gearing I want than it would a double. |
Originally Posted by jlaw
(Post 21397213)
I am a fan of super-compact doubles for all-around bikes. I am not riding in a pace line at 30 mph so I don't need a 50T chainring. As such, when I did a vintage frame rebuild I used a 2x10 set-up with a SRAM x5 39-26 crankset - affordable and effective.
It works well for me and I don't spin-out until well over 20 mph - plus lots of hill-climbing gears. I ride in the 39T most of the time and can run up/down the 11-32 cassette - except for the 39-32 combo where I can hear the chain complaining. This x5 uses an external, threaded BB - a simple install and no problems in about 2000 miles of riding. Since the FD is friction with the Gevenalle shifters you should have many FD options that can be made to work without compatibility issues. I suggest that you call Gevenalle to inquire about the specific drive train that you want to use before you buy anything. You may need to adjust the chain line a bit using shims - a call to Lynskey with your specifics would help answer this question. I don't know if SRAM still makes this particular 39-26 crank set - but there are plenty of possibilities when you search. The 42-28 below might work for you - $150. https://cimg6.ibsrv.net/gimg/bikefor...5945e433bd.jpg https://www.amazon.com/Truvativ-X-0-.../dp/B004HNVERE https://images-na.ssl-images-amazon....AC_SL1500_.jpg I like that XO crank a lot. I would prefer a 170, but would be happy enough with the 175. I am concerned about chainline. I asked Lynskey about it yesterday, and this was their reply to my question about the chainline. Hey Paul, the gravel frame would utilize standard road chainline spacing . What crankset are you looking to equip that brings about a concern of chainline? Alex2:46 PM 43.5mm chainline Alex2:47 PM I have been looking at mountain doubles. You2:48 PM ah, makes perfect sense now go for a non boost mnt crankset Alex2:48 PM |
Originally Posted by Paul Barnard
(Post 21397361)
I am concerned about chainline. I asked Lynskey about it yesterday, and this was their reply to my question about the chainline.
Even with all that the bike shifts crisply using a 10 speed indexed down tube shifter. No noticeable problems with chain line until I try to use the 39-32 or 26-11 combinations. 18 out of 20 combos work just fine. If the Lynskey frame is spaced at 130 or 135 in back then, as Lynskey told you, then you should have many workable options. To be certain it would help to figure the actual chain line of your desired set-up prior to purchase. |
Originally Posted by jlaw
(Post 21397450)
As mentioned, I used a SRAM MTB crankset with the GPX threaded external bottom bracket on a mid-1980's Trek road frame originally spaced at 126 mm that I simply spread by hand to 130 mm when I insert the 10 speed rear wheel. I installed the BB as instructed and didn't do anything fancy with the shims - there is no shim on the drive side of my bike.
Even with all that the bike shifts crisply using a 10 speed indexed down tube shifter. No noticeable problems with chain line until I try to use the 39-32 or 26-11 combinations. 18 out of 20 combos work just fine. If the Lynskey frame is spaced at 130 or 135 in back then, as Lynskey told you, then you should have many workable options. To be certain it would help to figure the actual chain line of your desired set-up prior to purchase. |
Originally Posted by Paul Barnard
(Post 21397504)
The Lynskey Gravel Bike uses a 142 thru axle. That normally translates into 135 inside spacing. With every build I have done chainline has been a mystery.
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Will this crankset work with 10 speed drivetrain and the Gevenalle GX shifters? If so, I think I have it figured out.
https://www.treefortbikes.com/Sugino...xoCvMkQAvD_BwE |
Originally Posted by Pratt
(Post 21395823)
If I were in your shoes, I would guesstimate what the lowest gear-inch number I would comfortable with, then the highest. That would give you a couple of numbers to aim at. Then, decide how many chainwheels you want to deal with, 1, 2, or 3. Given that you live in Louisississippi, there might not be too much climbing and you might be happy with around 26 GI on the low end and maybe 110 GI at the high end.
Good luck Lynskey has said that it has a road chainline. That means if I go with a mountain crank, I am going to be 5mm to far to the right. If there were JIS crank of suitable quality, then I could adjust my chainline via bottom bracket width. |
Originally Posted by Paul Barnard
(Post 21399530)
I like square taper cranks too, the inexpensive cartridge bottom brackets from Shimano are like energizer bunnies, they keep going and going and going. You might later want a 24T granny gear instead of the 26, but you can decide that later. I use a 24T on my derailleur touring bikes. *** Maybe phone in your order to find out if they are really open and will ship or if you might have to wait for a state-wide shut down order to end? I ordered something a week ago from a different supplier, on-line they said I would get it within a week and a half. But now their website says I can expect to receive my order in June or July. |
Originally Posted by Paul Barnard
(Post 21399530)
Will this crankset work with 10 speed drivetrain and the Gevenalle GX shifters? If so, I think I have it figured out.
https://www.treefortbikes.com/Sugino...xoCvMkQAvD_BwE |
Another reasonably-priced MTB triple - not square taper - but with a triple crank the chain line may not be as critical?
42-32-24 $129 https://www.jensonusa.com/Race-Face-...-3X10-Crankset https://www.jensonusa.com/globalasse...black_3x_1.jpg or, the Shimano FC-M610 - 42-32-24 - $150 + shipping and it includes the external BB. I have this crank on a Specialized AWOL and find it to have a nice flow as I shift up and down using the RD or the FD. I run it as a 9 speed with brifters - might work with 10 speed? I don't think Shimano makes this anymore. The link below is for a 'take off' component. https://www.ebay.com/itm/Shimano-FC-...-/113924097680 https://i.ebayimg.com/images/g/qTQAA...wM/s-l1600.jpg |
Simple. A GRX disc group, 46/30 crank, 11-46 cassette. About $1400 for the drivetrain components plus disc calipers.
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Originally Posted by jlaw
(Post 21400776)
Another reasonably-priced MTB triple - not square taper - but with a triple crank the chain line may not be as critical?
42-32-24 $129 https://www.jensonusa.com/Race-Face-...-3X10-Crankset https://www.jensonusa.com/globalasse...black_3x_1.jpg or, the Shimano FC-M610 - 42-32-24 - $150 + shipping and it includes the external BB. I have this crank on a Specialized AWOL and find it to have a nice flow as I shift up and down using the RD or the FD. I run it as a 9 speed with brifters - might work with 10 speed? I don't think Shimano makes this anymore. The link below is for a 'take off' component. https://www.ebay.com/itm/Shimano-FC-...-/113924097680 https://i.ebayimg.com/images/g/qTQAA...wM/s-l1600.jpg I have a Deore 10 speed triple in my attic. It also occurred to me earlier today that I should ask Lynskey what the chainline is on my Lynskey Backroad. If it is a 43.5, then I know how a Shimano MTB triple crank will line up. |
Originally Posted by Steve B.
(Post 21400785)
Simple. A GRX disc group, 46/30 crank, 11-46 cassette. About $1400 for the drivetrain components plus disc calipers.
Thanks Steve, but it looks like that is not available with mechanical disc brakes. |
Originally Posted by Paul Barnard
(Post 21401038)
Thanks Steve, but it looks like that is not available with mechanical disc brakes.
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Originally Posted by Steve B.
(Post 21401054)
Apologies, was replying to your OP, missed that on post 7.
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