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

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

Perfect addition to use my current 1-1/8th stem on my classic mtb. The 25.4mm stem worked seamlessly. Important to note, bikes using a quil stem require a specific size quil diameter*

Good quality,Thanks

High quality at a good price. I have 3 of these on 3 different ebikes. They are heavy duty and good quality.

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

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.

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.

very good

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

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

前傾のまま長距離サイクリングに耐えられなくなってきたため購入。予定通り高くすることができた。