TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter

Well made and functional.

Great Fit for any bike

Arrived in a timely manner as advertised. Great product. Fit perfect

Worked great to replace the stem/neck that came with my ebike. Save me some weight and gave me a lower profile that I wanted. Quick swap out and great price.

Works, but very tight fit in 1” threaded fork: had to grease liberally and still use a mallet to fully seat it

Good quality,Thanks

It is a decent part, but the powder coating on mine was insanely thick. It added 2+ mm to the part's diameter, and it wouldn't fit in the stem. The stamping on it was also very deep, creating a heavy bulge in that area that again makes the part hard to fit into the fork. I ended up taking a brass wire brush on a grinder to remove the powder coating. It sucks that you have to modify a part that should work right out of the box. At least it is aluminum, and the coating isn't needed. After stripping the part, I anodized mine with a home kit.

This is a must have upgrade for older bikes. I threw this one on a cheap 80s Trek along with a CF handle bar. Looks awesome. Super easy to install and fits well without the need for more adapters or shims.

Modifier un vélo de course vintage

Bij mij bleek het niet te passen in combinatie met een Ahead stuurpen, beide hadden dezelfde maat dus of de stuurpen of deze adapter hebben fouten.

Brings a vintage bike into the modern age. Great product

品質もいいので全く問題ないです。

Muy buen producto, pero no se adaptaba a las medidas de mi bicicleta