{"id":55916,"date":"2023-10-26T10:00:10","date_gmt":"2023-10-26T08:00:10","guid":{"rendered":"https:\/\/www.bikeradar.com\/?p=751204"},"modified":"2023-10-26T11:35:43","modified_gmt":"2023-10-26T09:35:43","slug":"you-can-now-use-your-sram-10-11-speed-mechanical-shifters-with-a-shimano-12-speed-cassette","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/cyclingplus\/rss_feed\/you-can-now-use-your-sram-10-11-speed-mechanical-shifters-with-a-shimano-12-speed-cassette\/","title":{"rendered":"You can now use your SRAM 10\/11-speed mechanical shifters with a Shimano 12-speed cassette\u00a0"},"content":{"rendered":"

Ratio Technology launches new conversion kit\u00a0 <\/p>

By Oscar Huckle\n \t\t<\/p>

Published: Thursday, 26 October 2023 at 08:00 AM<\/p>

\n\n

Ratio Technology has expanded its upgrade kit range to enable the use of Shimano\u2019s 12-speed road cassettes with SRAM 10- or 11-speed shifters, by introducing its new 2x12SH kit.<\/p>\n

An upgrade kit to upgrade SRAM 11-speed mechanical groupsets to work with the brand\u2019s eTap AXS chain<\/a> and cassettes<\/a> already exists.<\/p>\n

This option, however, makes it possible to bypass SRAM\u2019s XDR freehub<\/a> standard required to use its cassettes. This means you can continue to use your existing wheelset. SRAM 10- and 11-speed road bike groupsets<\/a> relied on a Shimano HG freehub body.<\/p>\n

\"Ratio\n<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture>\n<\/div>
The ratchet replaces the stock item in the SRAM shifter.<\/span><\/figcaption> Ratio Technology<\/i><\/span><\/div>\n

Included in the kit is what Ratio calls a 12SH Ratchet, which the brand says is designed specifically for the tooth positions on Shimano\u2019s 12-speed cassettes, as well as replacement pulley wheels for the rear derailleur.<\/p>\n

The 2x12SH kit will retail for \u00a399.50 \/ $120.80 \/ \u20ac114.30 \/ AU$191.30<\/p>\n

What\u2019s included in the kit?<\/h2>\n
\"Ratio\n<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture>\n<\/div>
This is what your \u00a399.50 buys you.<\/span><\/figcaption> Ratio Technology <\/i><\/span><\/div>\n

Both pulleys roll on stainless Enduro bearings and Ratio says they are machined in-house from acetal thermoplastic. The upper pulley is offset slightly to help SRAM 11-speed derailleurs cope with the increased width of the 12-speed cassettes.<\/p>\n

The kit is also compatible with SRAM 10-speed road bike shifters, with the addition of a Ratio Cable Spool to enable the 12SH Ratchet to install onto it.<\/p>\n

32t maximum capacity<\/h2>\n
\"SRAM\n<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture>\n<\/div>
The B-gap controls the distance between the cassette tooth and the upper pulley wheel.<\/span><\/figcaption> Ratio Technology <\/i><\/span><\/div>\n

Ratio Technology says the maximum tooth capacity is strictly 32, the same as SRAM\u2019s road WiFLi derailleurs. This means you won\u2019t be able to pair a Shimano 12-speed mountain bike cassette with the system.<\/p>\n

Of course, some Shimano 12-speed road cassettes are 11-34 and 11-36 (the only options on Shimano 105 Di2<\/a>). Ratio Technology doesn\u2019t officially endorse pairing its kit with these cassettes because \u201cthe B-gap can be slightly affected\u201d.<\/p>\n

The brand says it also tested SRAM\u2019s MTB Exact-Actuation 10-speed derailleurs with the 11-36 cassettes and found that \u201csome derailleurs don\u2019t quite have the sufficient range of movement to shift properly across the width of the Shimano cassettes\u201d.<\/p>\n

Why might riders want to upgrade?<\/h2>\n
\"Scott\n<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture>\n<\/div>
SRAM doesn\u2019t appear to have plans to launch 12-speed mechanical variants of its Rival, Force or Red groupsets.<\/span><\/figcaption> Oscar Huckle \/ Our Media <\/i><\/span><\/div>\n

SRAM\u2019s 11-speed road and gravel bike groupsets represent the last of the brand\u2019s offerings in a mechanical variant.<\/p>\n

With the exception of the recently announced Apex Eagle<\/a> (which utilises a mullet drivetrain<\/a>), SRAM\u2019s road and gravel 12-speed options are all electronic groupsets<\/a>.<\/p>\n

\"XDR\n<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture>\n<\/div>
The XDR freehub body is typically required due to SRAM\u2019s use of a smaller 10t starting cog.<\/span><\/figcaption> Oscar Huckle \/ Our Media <\/i><\/span><\/div>\n

By enabling previous-generation SRAM 11-speed mechanical groupsets to work with 12-speed cassettes, this effectively offers riders an up-to-date mechanical option without the hassle of sourcing a wheelset that\u2019s compatible with the brand\u2019s XDR freehub.<\/p> <\/body><\/html>\n

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