South Salem Cycleworks: Salem, Oregon
(503) 480-2001
email: sscycleworks@comcast.net
We have a huge stock of vintage and modern parts. Contact us!

Promax & Lee Chi quill stems

Promax & Lee Chi quill stems on this page:
1" diameter:
Promax 8cm
1 1/8" diameter:
Promax 9cm adjustable | Lee Chi 10cm

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Taiwan-based Lee Chi Enterprises also produces Promax bicycle components.


8cm Promax 1" quill stem with a 30-degree rise, 25.4mm bar clamp diameter. Used, $25.00/each

  • Actual rise: From the level of the quill's minimum insertion mark to the center of the bar is 12cm.

Promax 8 cm stem

From the side

Promax stem

Here's the other side.

Promax stem

The top and back of the stem

Promax stem

The front and underside.


Lee Chi 10cm, 1 1/8" quill stem with a 35-degree rise, 25.4mm bar clamp diameter. Used, $25.00/each

  • Actual rise: From the level of the quill's minimum insertion mark to the center of the bar is 7cm.

Lee Chi stem

Side view. You can see that the stem has a front brake cable housing stop.

Lee Chi stem

Here's the other side of the stem

Lee Chi stem

Front and underside of the stem

Lee Chi stem

Top and back of the stem


9cm Promax 1 1/8" adjustable quill stem with a 5 - 70 degree rise, 25.4mm bar clamp diameter. Used, $40.00/each

  • Actual rise: From the level of the quill's minimum insertion mark to the center of the bar is up to 16cm.

Promax adjustable stem

Side view

Promax adjustable stem

Here is the stem fully extended.

Promax stem

Here's the other side of the stem.

Promax stem

From behind.