Lt Stonez

Hi all!

Really need some help too lower my gearing befor some touring in the summer.
Fsa has some cranks
https://www.bike24.com/1.php?content...menu=1000,4,29
And is it possible with a 11-36 back?
This is my bike specs https://road-bikes.gearsuite.com/l/29...us-Comp-Carbon
Which parts do I need to buy to make this happen?
When touring am not in it for speed, I have the time to enjoy without eny rush. And lower gearing will also let enjoy climbing a little bit more when loaded.

Cheers

ksryder

Crank is a bb386 Evo crank so should work with most frames but you might need an adapter, I'm not sure what kind. I have trouble keeping up with all the different BB standards FSA throws at us.

The crankset doesn't care what kind of cassette you have, so they're compatible. But your rear derailleur might not be able to handle an 11-36. Assuming your bike has Tiagra components, it might work but I have no personal experience with it. I know Shimano is pretty conservative on their max cog specifications. Otherwise, Wolf Tooth makes a Road Link that allows you to use road derailleurs on wide range cassettes.

cyccommute 

Honestly, that's a chunk of change to spend for a pretty marginal improvement. This shows the differences assuming a 50/34 crank and 11-32 cassette for the stock bike. If you are going to spend that kind of money, why not get something that provides good low gears?

You can get a Shimano Deore Trekking crankset here for about $75. You'd need a a new front shifter for a triple but those run $75 for the both front and rear or about $50 for just the front. You'll also need a triple front derailer which are cheap, especially if you buy the cheaper but better Shimano FD. Another $25 to $30. You still are ahead of the 2x crank that you linked to.

Here's the comparison of the triple to your stock system with the same cassette. If you compare the stock triple with an 11-32 to the 2x crank with an 11-36, you still end up with a better low gear. The beauty of the triple is that you can change out the inner ring for a 22 tooth gear which lower the gears even further. And you can still go to a 34 or 36 tooth cog on the cassette to lower gears even further.

cpach

You'll need a 386evo bb for your frame--I'm pretty sure it's BSA threaded. Aside from that, X7 derailleurs are compatible with a 36T cog, but with this combination you'll need the long cage version (Spec doesn't mention exactly what your bike has).

I agree that I'd probably just get a triple crankset, FD, and shifter of more ordinary quality rather than a high end carbon road crankset.

Lt Stonez

My sirrus only have a doble 50-34 (11-32) and cost os not a problem. Am ready for some touring on my bike as it is, but Norway is hilly and it would have been nice with lower gearing. Maybe use stock crank and fit a 34 cassete would do the job? At the wourst hills around here some times I use the lowest gear and just make it slowly up the hills unloaded.
Adding 6-7kg when touring it wount make it better

cyccommute 

I think you missed my point. The FSA double you linked to costs too much for too little return. It's not that much different from what you have now. The triple set up I proposed give a whole lot more range for less money. Basically, the double is just a slight sideways shift while the triple takes gearing to another level.

I'm a bicycle tourist as well (look in my sig line) and know a thing or two about gearing. My touring bike uses a 46/34/20 with a 11-34 cassette. Here's the comparison to your stock gearing. As you can see where your low gears end, mine are just getting started.

My lowest gear isn't going to set speed records but I can...and have... pedal up anything that the Appalachian or Rocky Mountains can throw at me. On the plus side, I can also fly down the other side of those climbs

TimothyH

There is a huge thread on 46/30 cranks with an amazing amount of info. Definitely worth reading..I'm looking at the FSA Adventure cranks as well as the Praxis or Sugino 46/30 for a Di2 gravel build this spring.

Note to the OP, many are waiting for that FSA crank to hit the shelves. It is available as an OEM part on some factory built bikes but not as an orderable standalone part as yet. FSA has pushed back the availability date several times. The Bike24 site linked says "Delivery time unknown" so it looks like a preorder.


-Tim-

IK_biker

As evident from the referenced thread, many of us have been riding cranksets within the 42/24 - 46/30 range for years, while the dumba$$es who don't know better than waste their money on expensive stuff are still "waiting for that FSA crank to hit the shelves".

Cheers!

TimothyH

What is evident is that you have nothing useful to post but prefer to shoot off your mouth and insult people.



-Tim-

bradtx

Lt Stonez, If you are wishing to lower your gear range regardless if you're touring on the bike or not, then perhaps the expense is worth it. 7 kg isn't considered a heavy load in the touring niche.

I don't know if I'd pin my hopes on a crank set that may, or may not, become available to the general public in time for your tour. That's your call.

Brad

DougG

I fully agree with you on this. My old bike with its 105 triple gearing was the best-geared bike I've ridden. I spent 95% or more of my mostly flat riding on the 39-tooth middle ring, only using the other two for going up and down the steeper hills. When hills got harder as I aged, I swapped the inner ring for a 24-tooth and I was all set (this was all with the standard 12-27 cassette). Of course, it didn't shift on and off that gear too well, but I think I only dropped the chain once.

The other advantage of a triple IMO is that you can still run a close-ratio cassette, which is what allowed me to cruise so well on the middle ring. I've now been riding compact cranks with wide-ratio cassettes (e.g., 12-36 10-speed) and find that I am often hunting for the "right" gear ratio for my riding conditions, with too many 3-tooth spreads at the rear.

Lt Stonez

Also found this one on sale
Sugino OX601D Road Bike Crankset For Shimano 9 10s 46-30 175mm
46-30 w11-36(34) casset will have lower gearing than 50-34 w 11-32 right?
Yes I will use this crank mostly when touring.

TimothyH

Praxis makes them as well.

See the post at https://www.bikeforums.net/fifty-plus...road-bike.html.

The problem is figuring out which bottom bracket works with which crank/frame.

C9H13N 

I have the Sugino OX601D 46-30. It came with a Sugino-branded external BB that is interchangeable with Shimano Hollowtech.

Unfortunately the outer chainring isn't compatible with anything and only seems to be sold individually in Japan. It's essentially a giant middle chainring with the counterbore for the bolt holes on the inside.

Apologies if this was already mentioned in the other thread.

fietsbob

No experience with that one, but if... it you and the bike were in front of me & my Bike Shop Friends We could figure it out..

USA, Compass cycles, Seattle, has a posh copy of a classic French design..

White Industries, made in Cal, has the outers with 5 machined slots , so they have a variable bolt circle..

You buy the crank + a 46 outer and a 30 inner and "Bobs your Uncle".

you can get Classic TA Cyclotourist cranks too, a 26t is their minimal size, any thing bigger . "Byu" again.

cccorlew

The crankset you linked to is expensive. I want it for my road bike, but here's something that may be more in line with what you are after for less money. Now I just have to find it for sale somewhere....

I wrote FSA because I want it for my commuter bike SO MUCH...h... and got this reply.:


Hello Curtis,

No worries, the ETA for the 170mm Mega Exo type Omega 46/30t cranks has been set at 4/24/2017. Which means they will be available for sale about 4-5 business days after. Use the below part # to place an order for a set around that time via most bike shops. You will what to find out what bottom bracket standard Motobecane used. The below Omegas fit and come with an BSA (English) threaded bottom bracket.

330-0158BJ3261 Omega Adventure ME 46x30 N10/11 170mm SB black V17 w/o BB,CK-4002ST/WT $ 156.99 retail.

Hope this helps,

corrado33

Jeeeze why the heck would you spend so much on such an overpriced crankset? If you want low gears, buy a triple. Heck, buy a triple and take off the outer ring and you'd probably still end up spending less...

ksryder

I like how bikeforums is the only place on the internet where anyone still advocates for triples.

Andrew R Stewart 

I've been told that there's only a few locals in our country (USA) where new bike customers ask for triple crank low gearing. New bike supplying is the crank manufacturers' biggest customer. So after market availability is lost if OEM market is reduced.


I agree with cyccommute as to low gearing and triple cranks being a far better answer. But us old guys learned to spin to get speed. Like old racers say (and I'm no racer...) if you want to go faster pedal faster. Andy

Marcus_Ti

Tell me again, which 11s indexed road brifters have a triple left shifter?

TIA



(PS-that is why)

Cyclist0108

I would suggest that if you can use a triple, you should. (I just put an Athena triple on a bike about 6 months ago).

I put a White Industries 46/30T on my "gravel" bike (11-32 in the back). Basically it gives me about 1 lower gear at the expense of the 50/11 that I never used). The nice thing about the WI crank is you can put whatever sized rings on it that suit you. It works great with an 11-speed Di2 setup, fwiw. You can get it with a 30mm axle/bb or square taper.

The price mades the FSA option look like a real bargain, however (should it ever appear on the market).

Cyclist0108

Campy Athena.

There are likely others.

Marcus_Ti

That would probably be it.


Shimano 105, Ultegra (mech/Di2), Da (mech/Di2) are all double-only. SR/Record/Chorus/Potenza are doubly-only.

Cyclist0108

My inner ring on that triple is a 30T, so it really doesn't improve the low gearing relative to a 46/30T double (and it has a Campy pricetag, and I think it is now out of production).

The XT(R) Di2 is available in triple, fwiw.

Marcus_Ti

Which could work...so long as you're using all XTR derailleurs, with R785 brifters. BUT...Shimano recommends (Just repeating it here, never tried to push it) a max 34-38 top chainring gear with that FD. So the 40-ish/30-ish/20ish touring triples people want-are still no bueno.