Dimension 31.8mm Stem


SKU: DIM31ST Category: Tag:

Dimension 31.8 Stems are fully forged 6061-T6 aluminum stems that have a 4-bolt handlebar clamp.


Our inspiring review is coming soon, for now, here is what Dimension have to say:

Dimension 31.8 Stems are fully forged 6061-T6 aluminum stems that have a 4-bolt handlebar clamp.


  • 31.8mm can be used with 26.0 bars with additional shim (SM5317)
  • Dimension stems are not intended for use with carbon handlebars or carbon steerer tubes


Shared Specs for all sizes:

  • Material: Alloy
  • Color: Black
  • S.H.I.S. Stem Clamp Diameter: 28.6
  • Bar Clamp Diameter (mm): 31.8
  • Defined Color: Black
  • Stack Height: 41
  • Stem Angle (deg): +7 , -7


  • Length: 60
  • Weight: 130


  • Length: 70
  • Weight: 137


  • Length: 80
  • Weight: 140


  • Length: 90
  • Weight: 145


  • Length: 100
  • Weight: 160


  • Length: 110
  • Weight: 170

WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to www.P65Warnings.ca.gov.​


Dimension warrants all Dimension products against defects in materials and workmanship for two (2) years from the original date of retail purchase by the consumer.

Customer Reviews
5.0 Based on 2 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Katie L.
United States (US) United States (US)

Above and beyond

Campfire cycling upgraded our tandem for us so that it was easier to ride. They did an excellent job at the mechanics of the whole project. (Our tandem is not configured in the normal way). The thing that put them in the 5 star ranking is that they were so very helpful with the logistics of it. They worked with us so that we could leave the bike until we returned to Tucson 4 mths later. They also kept up regular communication so that I knew what was going on. There was no problem with that bike that they couldn’t offer a suggestion for. Wonderful bike shop experience.

David D.
United States (US) United States (US)

Stem Purchase

I went to Campfire Cycling to get help with putting myself in a more functional position on my mountain bike. Toby worked with me to look at my current position and made recommendations, including a shorter stem and new handlebars to get me into a more upright and comfortable position. After this Toby installed the new parts and made additional adjustments to make sure that the new set up was ready to ride. In the last few weeks since picking up my newly set up bike, I have ridden it on a regular basis and feel like I have a new bike. Based on my initial experience, I enthusiastically recommend Campfire Cycling and I am looking forward to future visits to the shop.