MUQZI Handlebar Adapter Shim Conversion and Specifications
The aluminum shim design provides a handlebar stem solution that bridges outdated and modern fork diameters, enabling equipment upgrades without full stem replacement. Precision engineering delivers zero play between bar and stem, critical for safe handling during technical descents or high-speed road sections. The dual-range capability covers both 25.4-31.8mm and 31.8-35mm transitions, making this adapter relevant to vintage frames and contemporary rigid forks alike. Handlebar stem compatibility extends across MTB, road, cruiser, and hybrid categories, reducing the need for specialized tools or professional installation. Order online from MUQZI and upgrade your contact points with a trusted conversion component backed by proven durability in demanding riding conditions.





















N***a –
Since alixpress has changed its delivery method and the products do not arrive close to my home, but rather to a single distribution center in the entire city, which is far and inaccessible, i am forced to consider purchasing elsewhere.
AliExpress Shopper –
It worked well, locks securely without the handlebar spinning.
can buy
AliExpress Shopper –
It’s a good product, good price, good materials, works perfectly despite being an adaptation.
AliExpress Shopper –
Everything is fine. I installed it on a 31.8m handlebar, and the stem was for a 35mm thread. It doesn’t slip because they are narrow; I still have a no-wire system on the handlebar.
A***n –
Bit fiddly to get in place, work a treat tho and they’re very lightweight and discreet, can’t really tell they’re there, i would recommend