Like this site? Help us to make it better.


Specialized Comp Road stem



Adjustable and stiff at a very agreeable price

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

What the scores mean

Good scores are more common than bad, because fortunately good products are more common than bad.

  • Exceptional
  • Excellent
  • Very Good
  • Good
  • Quite good
  • Average
  • Not so good
  • Poor
  • Bad
  • Appalling

This stem is brilliant if you’re not sure about the stem angle you need and you want to experiment with different positions, or if you want to change the height of your bars throughout the season or for different events. This is particularly handy for time triallists or triathletes. It can also come in quite handy if you want your (horizontal top tube) bike to look 'just right' and you need to the stem angle to match the top tube angle – or maybe that's just me.

In the box you get 1 stem, 1 top cap and bolt, 3 shims and thankfully some instructions with adequate diagrams. Basically, both the 12 and 24 degree versions of this stem give you another 8 degrees to play with by virtue of the 0, 2 and 4 degree shims. This gives you a range of 8 to 16 and 20 to 28 degrees respectively and that’s without flipping the stem over. The ‘base stem’ comes in 6 lengths from 75 to 130mm and has a 31.8 mm (oversize) 4 bolt bar clamp.

It’s fairly straightforward to install although it took me a little while to get my head around the shims and especially which way around the top cap should go (it effectively corrects the shim offset ensuring the top cap bolt still goes in to the fork bung at the right angle). The only thing to watch out for is that the combination of stem and shim is a bit taller than a non adjustable stem, so make sure there’s enough steerer to clamp it on to properly.

Once on the bike it looks good and performs well; as well as any non adjustable stems, and certainly better than other types of adjustable stem that I’ve tried.

At 172grams (110mm version) it’s not massively light, but it’s a versatile piece of kit and has refined the position on two of my bikes. Recommended.


Adjustable and stiff at a very agreeable price test report

Make and model: Specialized Comp Road stem

Size tested: 24° / 110mm

Rate the product for quality of construction:
Rate the product for performance:
Rate the product for durability:
Rate the product for weight, if applicable:
Rate the product for comfort, if applicable:
Rate the product for value:

Did you enjoy using the product? Yes

Would you consider buying the product? Yes

Would you recommend the product to a friend? Yes

Overall rating: 8/10

About the tester

Age: 32  Height: 1.78m  Weight: 76kg

I usually ride: All of them!  My best bike is: Cervelo Dual

I've been riding for: Over 20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: time trialling, commuting, touring, club rides, fixed/singlespeed, Audax

Latest Comments