The optimal solution for users of SRAM 10-speed cassettes, which when driving up steep inclines with 1x10 drives, often lack an even larger sprocket.
The cassette expansion of e * thirteen is very easy to install, it fits behind the usual 11-36 cassette, but displaced due to the predetermined width of the free wheel, a pinion.
The 17er pinion and a spacer made of the existing cartridge is removed and then the 42 teeth pinion completes the remainder of the cassette.
For operation with a 1x10 system, please use a derailleur with medium length cage. When using 2x10 drives a switching mechanism is advisable with long cage.
Exar, EXA + and EXA: For various ingredients (silicone, iron, copper, manganese, magnesium, chromium, zinc and aluminum), the special EXAlite aluminum, which comes in three different compositions produced.
Material: EXA + aluminum
Teeth: 42 teeth
Tooth shape: optimized for SRAM
Compatibility cartridge: 11-36 | 10x, SRAM X5 (PG-1030), X7 (PG-1050) and X9 (PG-1070)
Compatibility derailleur: medium cage (1x10) or long cage (2x10)
Lockring: is used by existing cassette
Color: black, red and blue