SRAM XX1 Review from Bike Magazine

SRAM XX1 Review from Bike Magazine.

My thoughts:

I run a 2×10 setup on the Superfish.  That’s 26/39T chainring and 12-36T cassette.

Lowest gear = 26/36, which is about .72 wheel revolutions per crank revolution.  Highest gear is 39/12, which is 3.25 wheel revolutions per crank revolution.

If I converted to 2×10 and wanted to have roughly the same lowest gear, I could select between the various chainrings (28-38T, by even teeth numbers), coupled with the 11 speed 10-42T cassette, to come up with a 30T chainring.  That would give me 30/42, or .714 wheel revolutions per crank revolution on the low end, and 30/10, or 3 wheel revolutions per crank revolution on the high end.

In other words, with a pound or more less weight, greater chain retention security, no front derailleur or shifter, and 17-18% jumps between gears (other than the jump to the bailout 42T), I could have more than 90% of the available gear ratios that I have with 2×10.  (In all reality, I’d probably go 32T, and have 32/42 (.76) and 32/10 (3.2)).

By contrast, if I went 1×10, with the current cassette technology, I could go 11-36 T.  Working around the odd BCD on my SRAM X9, assume I had a 30T single chainring.  That would give me a 30/36 (.83) lowest gear and a 30/11 (2.72) highest gear.  The XX1 gives meaningful lower and higher gears.  It’s intriguing.  Darn intriguing.

UPDATE:  Bike Radar’s review is here.  Similar comments.

About these ads

3 thoughts on “SRAM XX1 Review from Bike Magazine

    • From what I’ve read, SRAM will have both grip shift and trigger shifters. The XX1, being 11 speed, is not compatible with any existing brifters. Given that it is mountain oriented, I’d guess that it is unlikely to have a brifter released…notwithstanding the potential cross/monstercross/drop bar mountain applications. The derailleur is also not compatible with any existing chains or drivetrains…

      So likely not.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s