Thanks to the high ratio of the new 10-speed cassette from SRAM and Shimano in increments of 11 to 36 teeth, it is also possible with a 1 x 10-turn circuit to have enough bandwidth for fast and substantially flat cross country and marathon routes , The chain is guided safely over a single chainring - chain suck and similar time-consuming breakdowns cases are virtually eliminated. The chain guide can be used flexibly with any sprocket size can be with spacers to different chain line adjust n.
As positive 'side effect' can still weight off! 250 grams can be saved.
The example of the SRAM XX group -
less derailleur (about 115g) Trigger left (90g) Chainring 26 teeth inside (about 24g) Kettenblattschrauben interior (about 7g) Shifting and sheath (1.5m approx 58g)
- gives the minus 294g of unneeded components, plus 38g for the shift-up, equal to 256 grams of weight savings! alone in the high-end group of SRAM.