Shimano vs. SRAM

If you happen to be on the market for a new bike or even a new bike build, the inevitable question is always Shimano or SRAM. At the moment, Shimano and SRAM are without question the world's biggest cycling groupset manufacturers. There was a point in time when Campagnolo made the best groupsets, but in the past 10 years Shimano and SRAM have taken the clear lead. Choosing the best groupset for your bike isn't always as straightforward as it seems. In this article, I'll help you answer one of the most common questions in bike tech: Shimano or SRAM?

Before I get into the deep details about the differences amongst the road groupsets, my main advice is the following:

1. If you want performance, choose Shimano Ultegra or Dura-Ace.
2. If you want better gear ratios, ergonomics, and less maintenance choose SRAM Force or Red.

I have ridden it all from Shimano 105, Ultegra, and Dura-Ace to SRAM Force and Red groupsets. Ultimately, I have come to the conclusion that Shimano Ultegra and Dura-Ace offer the best performance due to superior shifting speed, reliability, and chain efficiency. A Dura-Ace XTR chain is ~3 watts faster than a SRAM Red Flat top chain in almost all conditions. [1] I can also say that I have only dropped my chain on a Shimano groupset once or twice in my life. Unfortunately, I have not had the same experience with SRAM. Even with the new release of SRAM Red last year, I still believe Ultegra and Dura-Ace provide more precise shifting that is also slightly faster.

On the other hand, if you are not performance oriented and not chasing every marginal gain, I believe SRAM outperforms Shimano everywhere else. SRAM clearly beats Shimano in the following:

1. Gear ratios: SRAM offers more options through multiple cassette and chainring sizes. (*** If you plan on using your bike on the road and on gravel, choose SRAM!)
2. Maintenance and Usability: In my experience, SRAM groupsets are much easier to maintain. SRAM groupsets are completely wireless, and most importantly contain two interchangeable batteries that can be very easily charged. On the other hand, Shimano is semi-wireless and often times the battery is placed inside the seat-post of the bike.
3. Ergonomics: SRAM also offers cyclists and bike fitters with better ergonomics and adjustability in comparison to Shimano. SRAM offers cranks from 150mm to 175mm and Shimano offers cranks from just 160mm to 175mm In addition, the SRAM levers offer more adjustability than Shimano levers. SRAM levers can be adjusted accordingly for people with smaller and bigger hands.

In Summary, if my goals are to go as fast as possible and to fully optimize, I will always choose Shimano Dura-Ace or Ultegra with a Dura-Ace chain. However, if performance is not of upmost importance for a bike, I will always choose SRAM.

I hope this article has been helpful in regards to understanding the differences between both SRAM and Shimano. I also hope I've helped you choose the best groupset for your riding without all the cycling marketing nonsense involved!

References

[1] Zero Friction Cycling. “Chain Testing.” Zero Friction Cycling. https://zerofrictioncycling.com.au/chaintesting/