Ethirteen Helix Sram XD Cassette 12s 13-52

Ethirteen Helix Sram XD Cassette 12s 13-52

Marsoni

M251S

$341.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Ethirteen Helix Sram XD Cassette 12s 13-52e*thirteen Helix Race Cassette 12 speed 13 52T Bronze A close ratio cassette specifically for e bikes. Enter the Helix Race 13 52T a new 12 speed close ratio cassette, specifically engineered for steep terrain where climbing speeds are high, and descents are gravity powered. The 13T, in combination with a 32T chainring, at 85rpm cadence, will deliver speeds at or just above 32kmph 20mph, which is just beyond the speed limited assistance of most e

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the size was not what i expected, most shoes i wear have always been a size 8, but this one was a bit tight. I asked a question on the page if the size is based on UK or US since there's a 1 size difference. but it said it was US standard reference. perhaps buying a size 9 would fix this issue for me. The quality of the shoes however is very great, compared to the basic shoe affordable brands you get this one has better quality, they're light and great whether you're stationary or actively jogging or walking. just the size was lacking in fit.

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Reviewed in the United States on February 9, 2026

Verified Purchase

Ahmet Said Tuğrul

Phoenix, US

★★★★★ 2

Not recommended

Size: 9.5, Color: Navy

Not comfortable and hurt my ankle. Makes weird leather sounds while walking. Looks good but go for a different shoe if you are looking for comfort.

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Reviewed in the United States on March 1, 2026