Australian Mountain Bike - - Fast Track -

If you’re sit­ting at home look­ing at all the flash bikes com­ing out with SRAM Ea­gle 12-speed driv­e­trains, or lust­ing after Shimano’s new XTR M9100, you might feel a bit be­hind. But there would be more bikes with 11, or even 10-speed driv­e­trains on the trails than those with the huge spread that 12-speed of­fers.

E13 have added to their TRS+ cas­sette range, bring­ing out a whole up­grade kit that can trans­form your cur­rent SRAM GX, X1, X01 and XX1 11-speed bikes to 12-speed. The kit has ev­ery­thing you need in­clud­ing the 9-46t cas­sette that of­fers a 511% range. It comes with the tools, grease, hous­ing, chain, new springs, bolts, bear­ings, spacers and fix­tures – ab­so­lutely ev­ery­thing you re­quire to trans­form a SRAM 11-speed driv­e­train to a su­per-wide 12-speed driv­e­train.

Not only does the E13 up­grade kit save you the cost of a group set up­grade, it saves weight and has a broader range than SRAM Ea­gle. E13 also state that thanks to us­ing a 9-46 range, you can use a slightly smaller chain­ring and a shorter chain, sav­ing more weight. The lower jockey wheel will also be higher than on an Ea­gle driv­e­train, adding ground clear­ance and po­ten­tially in­creas­ing dura­bil­ity.

Best of all, the E13 TRS 12-speed cas­sette weighs just 336 grams and has re­place­able steel and alu­minium clus­ters for long-term so­lu­tions when parts wear out. E13 also claim that the 9-46 cas­sette is com­pat­i­ble with SRAM Ea­gle driv­e­trains.

The whole kit sells for $469.95, and while it has ev­ery­thing you need in­cluded, we sus­pect you’ll still need some me­chan­i­cal nous to do the up­grade. But that is ex­actly what your trusted lo­cal bike store is for. Given the op­tions for moun­tain bike driv­e­trains con­tin­ues to grow, we think this is a great up­grade in terms of price and per­for­mance, and we look for­ward to the op­por­tu­nity to try one out once they ar­rive on our shores.

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