e*Thirteen has two new cassettes, providing each the widest vary and the nearest vary…of any trendy wide selection cassette. Up most sensible is the brand new 9-52, which pairs e13’s ultra-small 9-tooth cog starter with a brand new 52-tooth massive cog, giving them a claimed 578% vary…a large bounce in comparison to the 520% and 510% of SRAM and Shimano’s widest cassettes, respectively.
The cassettes use their two-piece design, with the 2 greatest cogs being aluminum, and the principle cluster being machined from metal. They have compatibility to a SRAM XD freehub frame, and if you have already got the 9-50 cassette, you’ll change within the new 43-52 alloy bit to get the greater vary.
But the extra attention-grabbing one may well be this “close range” cassette that begins at 13 and is going to 52. That’s a narrower vary, however it offers them smaller tools steps, which they prioritized hanging close to the highest (large) finish of the cassette for cadence control.
The thought is to present e-mountain bikers a extra helpful cassette that shifts more uncomplicated underneath load, however it additionally works simply effective for 100% human powered motorcycles, too. Here’s the way it compares, cog by means of cog:
- Helix Race Close Ratio: 13-15-17-19-22-25-28-32-36-40-45-52
- Helix Race Wide Range: September 11-13-15-17-20-23-27-31-36-43-52
- SRAM Eagle 10-52: 10-12-14-16-18-21-24-28-32-38-44-52
And here is what that appears like in a chart:
The new wide selection cassette weighs in at 392g, and the shut vary is 467g because the cogs are larger and it is strengthened for e-bike use. Both are available in 5 anodized colour choices, too.
In different information, they have expanded their chainring lineup to incorporate e-bike chainrings for Bosch, Fazua, Brose, and Shimano. They, too, will are available in the entire colours, so you’ll fit your drivetrain up…
…with new anodized colour choices for his or her dropper seatpost collars and most sensible clamps, too.
Their new Schrader Quick Fill valve stem makes use of a modular design that converts from Presta to a valve-free, Schrader-sized port for more uncomplicated tubeless setup…or simply the usage of it with any pump you have got to be had.
Their first access into the software class is a tire lever that splits open to provide you with two levers and divulge a tire plugger software within, entire with valve core remover.
The new e-Thirteen Optimus is their XC/downcountry tyre, with a decrease profile middle segment of tightly spaced knobs transitioning to taller facet knobs for exhausting cornering. It is available in two variations, a 120tpi XC casing for essentially the most supple efficiency, and a Trail model with extra supportive 72tpi casing and nylon breaker underneath the tread cap for additonal puncture coverage.
Claimed weight is 812g (XC) and 852g (TR) for the 29er, and 698g / 766g for the 27.5, all to be had handiest in a 2.4″ width. It’s a twin compound rubber with 50a facet knobs and 56a middle segment. MSRP is $64.95.
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