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Rotor Agilis XC2 crankset

Innovative cross-country race crankset

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Rotor's Ágilis XC2 crankset is purpose built for cross country racing with a two-ring spider and narrower stance width.

Rotor's Ágilis XC2 crankset is purpose built for cross country racing with a two-ring spider and narrower stance width. (Image credit: James Huang)
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The Ágilis crankarms are CNC machined both on the outside and inside, effectively making them hollow for lighter weight.

The Ágilis crankarms are CNC machined both on the outside and inside, effectively making them hollow for lighter weight. (Image credit: James Huang)
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The 74/110mm five-arm BCD spider allows for a wide range of gearing options.

The 74/110mm five-arm BCD spider allows for a wide range of gearing options. (Image credit: James Huang)
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The aluminum spindle attaches to the driveside arm with a seven-sided taper.

The aluminum spindle attaches to the driveside arm with a seven-sided taper. (Image credit: James Huang)
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The non-drive arm attachment is adjustable for precise bearing preload.

The non-drive arm attachment is adjustable for precise bearing preload. (Image credit: James Huang)

Rotor follows a different path with its new Ágilis XC2 mountain bike

Modern external bearings and a large-diameter aluminium spindle go a

Oval rings are worth a try

As is becoming increasingly popular these days, the Ágilis XC2 is a

Shift performance is very good in spite of the Q Rings’ elliptical

As for the Q Rings themselves, they definitely take one or two rides

The effectively smaller chainring sizes at the dead spots get you back

Three's a crowd

The obvious benefits to a two-ring crankset are simplified shifting

Stance width of the Ágilis XC2 is a refreshingly narrow 163mm – a

Keep in mind that narrower isn’t necessarily better for everyone, and potential

However, for those who feel the latest crop of external-bearing

Good idea ... in theory

Rotor offers the Ágilis as a modular system with one of two external-bearing bottom bracket designs – the standard BB1 which we

Though mostly identical to conventional bottom brackets, SABB adds free-swivelling

Either way, our steel bearing-equipped BB1 unfortunately had a bit of

Yea or nay?

Even with its performance benefits the Rotor Ágilis XC2 is still

Unfortunately, we’re less impressed with the bottom bracket. Though we’ve had good luck in the past with a

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