Sramanolo wide

[DaveS]

I got an XDR freehub body for my Zonda wheels and the new 10-36 Force AXS 12 speed cassette. It's running on my Chorus 12 bike, with 48/32 crank. The 54 inch chain that works with the Campy 11-34 on 406mm chainstays wasn't long enough to wrap the big/big, so a 55 inch AXS chain was used. The Campy RD has a 39T wrap capacity, so it leaves the chain hanging loose in the little ring and 10 or 11T sprockets, which I'd never use anyway. Other than that, I've not detected any shifting problem, but I haven't had it on a normal ride yet. Tomorrow I'll get it out on some steep climbs for a real test.

My 48/10 top gear is nearly identical to a 53/11 and there's now a 32/36 low gear.

Weight wise, the old 11-34 cassette weighs 338 grams and the Force cassette weighs 302.

[Alexandrumarian]

Very curious to hear the ride report!

[Maximilian]

Nice hacking of groupsets but is such a low gear really required on a road bike? If it's and all-road or gravel set up then I totally get it but on the road you've got be be hitting some steep stuff for such a gear.

Sent from my COL-L29 using Tapatalk

[DaveS]

I now get by with a 32/34 low gear, but I use it a lot on grades over 10%. I'm light at 61-62kg, but I'm also 67 years old. This is more of an experiment than anything. It has already been reported that the AXS cassette works with EPS 12, but there was question whether mechanical group would also work. It also means that any AXS cassette can be used.

A 32/26 is about the same as a 39/32. Just a different way to get the same range as a 53/39 and 11-32.

[DaveS]

deleted

[pdlpsher1]

Very nice. I ride a tandem and I currently use a 50/34 and 11-40 setup. A 10T cog really does widen the range by quite a lot. On my half-bike I run a 50/34 and 11-32. When I do go to 12-speed I want 1:1 gearing. I also live in CO and it's not uncommon to go up a 10%+ grade with a raging headwind. Another benefit of a wide-range cassette is the ability to stay in the big ring longer.

[joeyb1000]

Am I correct that you are using AXS Cassette/chain and cranks, but with Campy derailleurs?

[DaveS]

In my first post, it says I have a Chorus 12 equipped bike with 48/32 crank. SRAM only offers 12 speed cranks with a 13 tooth difference, that reduces range. I am using an AXS chain. I've been using both AXS and Campy 12 chains with my Campy 12 crank and cassettes for a year now with no problems.

Others have used the Campy 12 chain with AXS cassettes.

[joeyb1000]

In my first post, it says I have a Chorus 12 equipped bike with 48/32 crank. SRAM only offers 12 speed cranks with a 13 tooth difference, that reduces range. I am using an AXS chain. I've been using both AXS and Campy 12 chains with my Campy 12 crank and cassettes for a year now with no problems.

Others have used the Campy 12 chain with AXS cassettes.

Thanks. I am going the opposite route on my travel bike (AXS Etap derailleurs, but keeping my Campy cranks, chain and cassettes). I'll post the results on this thread.
The only thing I'm suprised in your reply is the AXS chain with Campy cranks. I was under the impression that this didn't work because the AXS rollers were larger.

[DaveS]

The AXS rollers are .006 inch larger in diameter, but it's caused no problem with either the Campy cranks or cassettes. I alternate using Campy and SRAM chains.

I completed my first 45 mile ride with the AXS cassette and had no problems at all. It shifted just as well as an all Campy setup.

[DaveS]

After riding both of my Sramanolo bikes for a few weeks, I decided that my 48/10 top gear (like a 53/11) was just too much for all but a few brief situations, so I decided to try a 46/30 crank, instead of my chorus 48/32. I bought an inexpensive shimano grx 46/30 crank and a dura ace BB to go with it, so now my bike has a Sramano drivetrain or maybe its shimasramanolo. The grx crank has a 2.5mm wider chainline, so I expected to shim the chainrings over eventually. The stock crank just barely worked with my force axs FD, but it did work and I rode on a 45 mile ride with lots of steep climbing. I later shimmed the chainrings by 2.6mm, using two thinner washers at each bolt hole. I really needed longer chain ring bolts, since I was loosing about 3 turns of engagement. I found some cheap race face 12.5mm bolts or only $2.50 per 4 pack.

I took the bike out for a 52 mile ride today and deliberately made many extra chain ring shifts to test my set up. All went well, so I got rid of some unused top gear and added a little more low.

With cheap parts comes some extra weight - 115 grams more. Total range is 552%.

[pdlpsher1]

Nice. I think my tandem has roughly the same range (50/34 front, 11-40 rear) versus your 46/30 and 11-36. For road bikes I can't ever see going 1x since 2x gives you so much range with smaller gaps between the gears.