Baked Posted March 18, 2015 Posted March 18, 2015 I am shopping for a new bike, currently riding a full suspension alu but want to go hardtail carbon. The bike I am interested in has a 2x10 drivetrain, and I am worried that this will be a disadvantage on steep climbs? No idea what to expect?
NixM Posted March 18, 2015 Posted March 18, 2015 Go for it, I have had no problems, my 3 x setups feel cumbersome in comparison. I have had no problems adapting on climbs. I have not tried 1 x 11, yet...
The MTBer Posted March 18, 2015 Posted March 18, 2015 I will never go back to 3x10. I like my 2x10 setup, you can climb and you can go flat out. I would recommend it to a woman.
PeterF Posted March 18, 2015 Posted March 18, 2015 If you go with a 38/24 chainring on the front and a 11/36 cassette on the back you will have all the gears you need.
splat Posted March 19, 2015 Posted March 19, 2015 If you go with a 38/24 chainring on the front and a 11/36 cassette on the back you will have all the gears you need. ^^^^ What he said
Fabian46 Posted March 19, 2015 Posted March 19, 2015 If you go with a 38/24 chainring on the front and a 11/36 cassette on the back you will have all the gears you need.+1 this is really all you need
JXV Posted March 19, 2015 Posted March 19, 2015 I am shopping for a new bike, currently riding a full suspension alu but want to go hardtail carbon. The bike I am interested in has a 2x10 drivetrain, and I am worried that this will be a disadvantage on steep climbs? No idea what to expect?What size wheels on your old bike and on the new one? Wheel size affects gearing too
carbon29er Posted March 19, 2015 Posted March 19, 2015 The reality of gearing is that you eliminate gears when you reduce or increase blades. Typical 3x10 has a front that is 42/34/24 in Shimano and 44/33/22 in SRAM. With a 11-36 cassette at the rear you get the following gear inches (back wheel distance for a full pedal cycle):Combo 42/34/24 44/33/22 Big &11 109 114Small &36 19 17 24/36 26/38 26/39 28/42Big &11 94 99 101 109Small &36 19 21 21 22 A gear selection of 24/36 is about 6 kph at 90 cadence while 42/11 is about 45kph at 90. So depending what you choose you lose gears at either or both ends. What is pointless imo is taking a 26/38 chainset as you lose 10% at the bottom to go with the 10% you are giving up at the top. In my experience building bikes and supporting races, the best 2x10 chainset to get for an average rider is 24/38. Strong riders can handle the loss of granny so 28/42 is fine,
Dubsymike Posted March 19, 2015 Posted March 19, 2015 The reality of gearing is that you eliminate gears when you reduce or increase blades. Typical 3x10 has a front that is 42/34/24 in Shimano and 44/33/22 in SRAM. With a 11-36 cassette at the rear you get the following gear inches (back wheel distance for a full pedal cycle):Combo 42/34/24 44/33/22 Big &11 109 114Small &36 19 17 24/36 26/38 26/39 28/42Big &11 94 99 101 109Small &36 19 21 21 22 A gear selection of 24/36 is about 6 kph at 90 cadence while 42/11 is about 45kph at 90. So depending what you choose you lose gears at either or both ends. What is pointless imo is taking a 26/38 chainset as you lose 10% at the bottom to go with the 10% you are giving up at the top. In my experience building bikes and supporting races, the best 2x10 chainset to get for an average rider is 24/38. Strong riders can handle the loss of granny so 28/42 is fine,How easy/difficult is it to convert from a 3x10 to a 2x10?
Amberdrake Posted March 19, 2015 Posted March 19, 2015 3x10,2x10,1x10 or 1x1 its got nothing to do with gender more about your ability as a rider.
droenn Posted March 19, 2015 Posted March 19, 2015 3x10,2x10,1x10 or 1x1 its got nothing to do with gender more about your ability as a rider. So much this.
Albatross Posted March 19, 2015 Posted March 19, 2015 How easy/difficult is it to convert from a 3x10 to a 2x10?Easy, you take it to your lbs and ask them to do it prepare to pay
CdT85 Posted March 19, 2015 Posted March 19, 2015 Easy, you take it to your lbs and ask them to do it prepare to payRemove your granny gear and ignore the fact that its a tripple cranset and not a double crankset. And If you have XT shifters, you can just set it to 2X in stead of 3X ( little knob you turn at the botton of the shifter). Else just set your derailleur min/max to only be able to shift up one gear and back.2 x 10 done, no extra cost...If you want to spend money, maybe change you chainrings to 30T/42T. Currently running my setup like this with a 11-36 cassette and cant complain, just need to upgrade my 38T to a 42T.
JXV Posted March 19, 2015 Posted March 19, 2015 How easy/difficult is it to convert from a 3x10 to a 2x10?Doing it the proper way you would have to change cranks, shifter and chainrings. Very expensive. You can ghetto it. remove granny and fit the smallest chainring you can find to the middle blade. Fit whatever large blade you like as big ring. adjust FD limits to only permit 2x. fit new 2x shifter (or use switch if you have a convertible shifter). You might also want to adjust chainline by removing BB spacers. Or do it the other way by removing big ring and using only granny and middle. Adjust FD to prevent it shifting up to big ring. This will automatically limit your 3x shifter as well. you might have to fit a much bigger middle blade and there will be some consequences in shift quality.
popcorn_skollie Posted March 19, 2015 Posted March 19, 2015 OP, go 2x10. Its all you should ever need.Tripple cranks are what remains of the old 8 and 9 speed cassette days.When 10 speed came out. A few bikes sported 3 x 10. (Still do) But I think it was because there were still so many tripple cranks around or maybe it was just old habits. 3 x 10 is pretty much useless and overkill on most bikes.2 x 10 is the general standard today which are phasing out the old 3 x 9 setups. Then, since we are derailing from the thread.Switching from a tripple crank to double is as easy as removing your big ring. You can have a bike shop limit your front derailleur so your existing shifter cannot switch over to the non-existent big ring. No need for a replacement shifter or derailleur.I've dont this before with 2 x 8 and 2 x 9 setups.
carbon29er Posted March 19, 2015 Posted March 19, 2015 Remove your granny gear and ignore the fact that its a tripple cranset and not a double crankset. And If you have XT shifters, you can just set it to 2X in stead of 3X ( little knob you turn at the botton of the shifter). Else just set your derailleur min/max to only be able to shift up one gear and back.2 x 10 done, no extra cost...If you want to spend money, maybe change you chainrings to 30T/42T. Currently running my setup like this with a 11-36 cassette and cant complain, just need to upgrade my 38T to a 42T. Actually it's best to remove the big chainring and mount it on the inside where the middle chainring is as the chainline is better from the middle position to avoid crossover when on big and 36 at the back. However most riders I know cannot drive a 32 or 34 as their small chainring. For reasons explained in the post above. Unfortunately you can't just remove the middle 34 and replace it with the outside 42 and a front dérailleur cannot jump more than 14 teeth in one shift. You will have to buy parts if you don't want to compromise on ratios more than you have to. My suggestion to convert 3x10 to 2x10 if on Shimano is keep your little chainring in position, remove the 34 and 42, buy a 38 and a new front dérailleur, mount the 38 where the 34 was, adjust your shifter to 2x10 buy turning a screw and go ride.
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