Mon-Sat 8am-5pm PT
Bike Tires Direct logo. Link to homepage.
Serving cyclists
since 2002


Components > Cockpit & Pedals > Stems

Product Images

Thomson Stem Top Cap Black
Thomson Stem Top Cap Silver
Click Here for Larger Image
Thomson Stem Top Cap 1
Thomson Stem Top Cap 2

Thomson Stem Top Cap


Pricing and Order Section

Mfg PartNum:
MSRP: $9.95
That's off
In Stock
Ships Free!
Earn $0.30 in VIP credit. Click to Learn More.
This color/size is not eligible for VIP points
Price matches are is not eligible for VIP points


Top cap for Thomson X2 and X4 1 1/8 Inch threadless stems when no spacer is used above the stem. May also be used with Elite stems. Triple Thomson logo (not to be confused with the discontinued double Thomson logo stem top cap which will not work with an X2 or X4 stem). Beautifully CNC machined like all of Thomson's fine stems and seatposts. Black or Silver. 6 grams.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.


Black - 1 1/8

Weight: 6 grams

Mfg PartNum: SM-A00-BK 

Silver - 1 1/8

Weight: 6 grams

Mfg PartNum: SM-A00-SL 

Black - 1 1/2

Weight: 16 grams

Mfg PartNum: SM-A003-BK 


Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Reviewed 6/6/2017
by jtkirk
Cycling Enthusiast
San Jose
Value Rating
Overall Rating
1 of 2 customers found this review helpful.

The Thomson stem top cap is the perfect finishing piece to a Thomson stem assembly.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 9/24/2012
by Anonymous
Value Rating
Overall Rating
3 of 3 customers found this review helpful.
just a top cap

I just bought it to match my stem, it does the job.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 6/19/2014
by Anonymous
Overall Rating
Looks great matching stem

Great stem cap

Was this review useful to you? Yes/No
Thank you for your feedback.

Mechanic's Corner

Articles will open in new tab.

Get the right stem for your ride.
additional content loading
additional content loading
additional content loading

We are committed to delivering outstanding value and service to our customers, every day.
Try us today to see why so many of our customers come back again and again.

*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Fri). Orders over $50
are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details. 15

5741 NE 87th Ave (I-205 exit 23B) Portland, OR 97220 | 800-682-0570 | [email protected]