Sea Otter 2014 – e-thirteen and Race Face: Alternative Drivetrain Components

by Brian Mullin on April 25, 2014


wide-range gearing capabilities of the SRAM 1×11 allow riders to enjoy a
simplified drivetrain with better performance, though the proprietary
components are pricey for most consumers. Some third party companies
have created a low-cost alternative that uses an existing 10-speed 11-36
cassette and swaps out a smaller cog with a larger 42-tooth one to
create a usable 11-42 cluster.

E*thirteen is jumping into this
ultra-large cog fray for 10-speed systems with their new Extended Range
(EX) cogs. They’ll be available in 40 and 42 tooth sizes for Shimano
cassettes, and a 42 tooth size for SRAM, and come in multiple colors,
and retail for $69.95. The large cog replaces the stock 17 or 15 tooth
cog, and only works with specific cassettes that allow that swap out to
occur. The EX cog comes with a longer b-tension screw which might be
required to adjust the derailleur to the proper clearance between the
large cog and the pulley. Adding the EX cog gives a drivetrain a wider
range for 1×10 and 2×10 gearing options, with a lower cost and fewer
part swap outs compared to SRAM 1×11 systems. The aluminum cogs weigh 70
grams for the 40 tooth and 77 grams for the 42, and will be available
at the end of May.

You can pair the 11-42 cassette with one of
their Guidering dual width chainrings that use optimized tooth profiles
and chamfers to provide exceptional chain retention. The aluminum
chainrings come in a 104 bcd, and 32, 34, 36 and 38 tooth sizes, and
retail for $54.95. They also sell a direct mount version which only fits
their M series cranks, and it comes in 28, 30, 32, 34, 36 and 38 tooth
sizes, and retail for $54.95.

For more information:

Race Face

Race Face 1x chainrings utilize a narrow wide tooth profile, and they
have a stiff 4mm plate thickness with an I-beam construction to help
transfer loads without any flexing. The 30-tooth chainring has a
built-in threaded spacer so the chain doesn’t interfere with the crank’s
spider. The 104 bcd chainrings are compatible with 10 and 11-speed
drivetrain’s, and come in 30, 32, 34, 36, 38 tooth sizes, and retail
from $49.99 to $59.99.

For more information:

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