XT M8100 vs SLX M7100 Derailleur – What’s the Difference?
With Shimano offering 12-speed versions of their XT and SLX groupsets, we thought we would break down the differences of the XT M8100 derailleur and the SLX M7100 derailleur in this following article. XT is Shimano's second tier group and SLX is their third-tier, so while there are some differences between the two derailleurs, they are fairly similar at the end of the day.
Weight
Weight is one of the differences between the two derailleurs, with the XT derailleur coming in slightly lighter than the SLX.
XT M8100 Derailleur - 284 grams
SLX M7100 Derailleur - 316 grams
Although the M8100 derailleur is lighter, the 32 grams of weight savings is pretty small at the end of the day. Most riders wouldn't even notice or care about the weight savings, but for those who are really trying to save weight the XT does have a slight weight advantage.
Price
Another difference between these two derailleurs is the price. This is where the SLX derailleur has an advantage as it is more affordable than its XT counterpart.
XT M8100 Derailleur - $159CAD
SLX M7100 Derailleur - $119CAD
The $40 price savings with the SLX derailleur is enticing as parts can add up quickly and customers are always trying to save where they can.
Compatibility/Features
XT M8100 Derailleur
- For single front chainring setup
- 51T max cog size
- Works with both 10-51 and 10-45-tooth cassettes
- Shadow RD+ chain stabilizing system
- 13t pulleys
SLX M7100 Derailleur
- For single front chainring setup
- 51T max cog size
- Works with both 10-51 and 10-45-tooth cassettes
- Shadow RD+ chain stabilizing system
- 13t pulleys
Both derailleurs are the same when it comes to compatibility and features, so there are no added benefits to go with one over the other in this regard.
Finish
The overall finish of the XT derailleur is a bit nicer compared to the SLX, although we think that the SLX finish is quite nice as well and the best looking version that Shimano has released to date. Looks shouldn't matter as much compared to the rest, but both of these derailleurs have a clean finish and look to them. Putting either of these derailleurs on a higher-end bike will still give you that premium look.
Our Take
With the features and benefits of both derailleurs being the same, the only differences are really the weight, price, and finish. The extra $40 for the XT derailleur really just gets you the 32 grams of weight savings and the nicer looking finish. If you are looking to save money the SLX derailleur is definitely the better option as the weight savings are minimal and the finishes are fairly similar.
Click here to purchase the XT M8100 derailleur.
Click here to purchase the SLX M7100 derailleur.
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