The new cassette is the biggest news here, which uses 123 stainless steel pins to hold the cogs (11 steel and one aluminium) together. And now a new carbon-fibre GX crankset is also available with both the carbon and unchanged alloy versions getting new anodised chainrings. 2021 SRAM GX Eagle 12-speed groupset details There are other reasons you might mix and match, too. If you were only able to get parts from one drivetrain because of shortages or location. Grab whatever you can and it will work. If you already have an Eagle drivetrain you could upgrade to electronic with the GX Eagle AXS upgrade kit to keep things as low cost as possible.

Thanks to the addition of that big 52t cog, the GX Eagle gear range now on offer is a whopping 520 per cent (Shimano’s is 510 per cent for reference). While I’ve tested the alloy crankset here (which hasn’t structurally changed), there is now a new carbon GX option available too, but both feature SRAM’s new two-tone anodised chainring, a treatment said to better improve durability. 2021 SRAM GX Eagle 12-speed groupset performance Only Eagle is a complete system-engineered drivetrain designed, tested and proven to deliver the lightest, highest-performing, most durable system for all riders on any trail. Only Eagle™ is a complete system-engineered drivetrain designed, tested and proven to deliver the lightest, highest-performing, most durable system for all riders on any trail.The new rear derailleur will work with both the 10-50t and 10-52t cassettes Russell Burton / Immediate Media KMC DLC > SRAM Hard Chromized > Shimano SILTEC > everything else, including Ti-Nitride coatings and whatever other marketing jargon is out there. Shimano's M9100 chain will be chromized, so they will be on par with SRAM. SRAM's non-chromized chains are just disposable... You should always keep proof of postage and we advise you to use a ‘signed for service’ when returning goods. Accurate setup using the new chain gap tool (which you’ll need to set the b-tension screw) is rewarded on the trail with smooth, quiet shifting. It feels crisp and positive too, and I’ve only had to tweak gear cable tension to adjust the indexing to keep things running smoothly. When you buy a chain it is always too long, which means it always needs to be cut to length. To adjust the chain to the correct length it has to be broken, this is done with a chain punch. Our chain punches can be found here. Make sure you choose a chain tool for the right speed. User tips

How often should I clean my bike? Regular cleaning ensures that your material lasts longer and that you can enjoy your cycling for longer. How often you need to clean depends on the weather conditions in which you ride. Do you cycle through all kinds of weather, or do you only go out when the sun is shining? It all affects the degree of wear and tear and some people will have to clean their bikes more often than others. Use the schedule below as a guide: The Eagle chain has been completely re-engineered, and is produced with new manufacturing technology.a) If we have sent you the incorrect bicycle, we will cover the cost of collection and delivery of the correct model. At the NX level that cassette uses a HG-type freehub. That's a Shimano standard brought over from older drivetrains. If you are upgrading from 11-speed, you don't need new wheels – everything will fit and you can move from 11- to 12-speed.