26 November 2021

SRAM Revisited


If you look back into the Positivo Espresso archives, or search some online forums, you can find some complaints that many of the first generation of SRAM eTap (wireless electronic) rear derailleurs failed, gradually or suddenly, within the first three to six months. Mine did also, in the middle of a ride. It was of questionable enough reliability that there was no way I was taking eTap for the trip to Europe that included 2019 PBP.  I also, historically, have grumbled when, say, a SRAM crank-arm sheared off above the pedal, leaving my foot dangling in mid air, not to mention the many times that the rubber brifter covers have torn and worn on my SRAM brifters.

Overall, I had the impression that SRAM was trying to shave weight off of components in places where, perhaps, they should have focused on reliability. And that they rushed eTap to the market faster than they should have.

Of course, a search through the archives and the "equipment we broke" page will show plenty of Shimano brifters, Shimano Ultegra cranksets, etc., that were unrepairable after catastrophic failure. But overall, historically, Shimano seemed a bit more reliable and conservative than SRAM.

Then there was the very fast, sudden, jump from 1st generation eTap to the AXS eTap, with almost no backward/forward compatibility! Ouch - felt like a punishment for jumping in with both feet and getting the early product.

But I have now been using my warranty replacement SRAM eTap rear derailleur without any problems for the past 2+ years.  At this point I would trust it enough to take it on a 1200km brevet outside Japan. It continues to have some great advantages, other than reliable, push-the-button shifting. The main one is ... no shift cables, mechanical or electrical. This is a compelling advantage for travel, when one needs to take apart and put together a bicycle several times to avoid damage and fit it as luggage. 

And these days I find myself using an old SRAM Rival/Red mechanical groupset mix, with long cage (Wi Fli) rear derailleur and FSA/Ossymetric cranks, on the travel bike. Also, the Pelso came with a 1x SRAM GX groupset with hydraulic disk brakes (also 11 spd ... not the newer "Eagle" 12 spd version). These SRAM products work just fine, though they are not as effortless to use as eTap.

SRAM seems to be the "innovator" now. They led in bringing 1X systems from the MTB to the road/gravel bike market, including rear derailleurs with a clutch and a very wide gear range.

They led with wireless electronic shifting. Shimano is only now bringing out a "half" wireless product that, while it does not have wires running through the top nor down tubes, and so would work for a travel bicycle with couplers, still has plenty of cables within the front and rear parts of the bike, and a seat post battery that cannot just be swapped in and out in seconds as the SRAM batteries can.

And the AXS eTap seems reasonably well-regarded in the market. It has been out for several years, and has "trickled down" from Red, to Force, to Rival versions. The Rival one is affordable, the Force one at least not shock-the-conscience outrageously expensive.  You can get a power meter in your crankset for a few hundred dollars extra -- a fraction of what the first Quarks or old SRMs cost a decade ago. And they have both 1X and 2X systems.

--I have read that SRAM is doing a firmware upgrade so that an older 11 speed eTap rear derailleur could function with a new AXS shifter, as they stop being able to supply the older shifters for replacement. Backward compatibility instead of forced obscelescence. 

--The batteries and chargers also are compatible between first generation eTap and AXS. The 12 speed SRAM cassette free hub is different than the 11 speed SRAM/Shimano one, but at least it seems that many hub/wheel manufacturers (e.g. DT Swiss, Chris King) make adapters to allow continued use of old wheels/hubs with the new 12 speed cassettes.

--Rim brake versions are available. A hydraulic disk defeats the simplicity for travel of no shift cables/wires, simple brake cables with splitters, unless you use one of the mechanical/hydraulic disc brakes such as TRP or the Ultimo Yokozuna. If I were to transfer this groupset to a disc brake bike in the future, I could get some of those and continue to use everything else (and continue to use cable splitters for the brake cables to travel.

The main disadvantages for SRAM are, I think:

(1) the Shimano front derailleur performance continues to be noticeably smoother/faster than SRAM, and 

(2) SRAM is very hard to find and expensive in Japan. 

I bought my eTap from a German online retailer at the end of 2018. If I try today, the same site tells me the product is "not available for shipment to Japan".  That said, it is usually possible to find someplace that will ship to Japan what I want and need, if I cannot find it locally. I just purchased a Force AXS upgrade (with Rival AXS crankset, including power meter) to install on my travel bike this winter. I was glad that they offer a rim brake version. 

And the gearing will be 46-33 crankset, 10-36 rear cassette, compared to my current 50-34 and 11-32.  So my top gear will be 4.6x instead of 4.54x, and the bottom will be 0.916 instead instead of 1.06. Total range is 502% instead of 428%. Also, I could find a merchant willing to ship to Japan. The bike's titanium frame is in its 10th year. I hope that with the new groupset, I will have at least another 10 years of relatively trouble-free travel around the globe with my Ti Travel bike, Voyage Voyage.

Finally, even if SRAM is made in Asia (mostly Taiwan), it is an American company, with a pretty cool looking HQ in Chicago. As an American overseas, it is nice, once in awhile, to fly the stars and stripes.


1 comment:

David Litt said...

This is a nice comparison of SRAM etap AXS Rival vs Shimano 105 di2 … affordable electronic group sets. I agree with the analysis and conclusion. The analysis is far more objective than a similar comparison done by road.cc …. he actually tests braking distance, shifting speed, etc.
road.cc seems as if they just listened to the Shimano sales rep. …
David Arthur
https://youtu.be/-U45UCvK6bI
road.cc
https://youtu.be/sIA8gl85f0g