




⚙️ Elevate your ride with Shimano’s precision bottom bracket — because every pedal stroke counts!
The SHIMANO BB-MT800 BSA bottom bracket features Hollowtech II technology for enhanced pedaling efficiency, weighs a mere 113.4 grams, and is designed for seamless compatibility with SLX and Deore XT groupsets. Crafted from durable metal and plastic, it offers reliable performance across spring and summer cycling seasons, embodying Shimano’s century-long legacy of innovation.
| Color | Black |
| Size | L |
| Style | Single |
| League | Shimano |
| Team | Shimano |
| Height | 2 inches |
| Item display length | 5 inches |
| Weight | 0.2 Kilograms |
| Material type | Metal, Plastic |
| Number of items | 1 |
| Seasons | Spring-Summer |
| Sport | Cycling |
| Included components | Bottom bracket |
| Batteries included? | No |
| Brand | SHIMANO |
| Department | Cycling |
| Manufacturer | Shimano |
| Item model number | IBBMT800B |
| Product Dimensions | 12 x 12 x 5 cm; 113.4 g |
| ASIN | B00WLFUP2U |
M**H
Good quality
Easy to fit providing you have quality tools.The bracket is supplied with a little grease applied, you will need more.So far feels solid, smooth and quiet.Good value when the Deore version is only marginally cheaper.
M**9
Does the job
Quick and easy to install as long as you got the correct tool. Fits perfectly, great quality,
R**B
Good Quality would recommend especially at the price.
Since this is priced cheaper than the deore/slx alternatives, this is a very good pick up. It come with a special tool as the XT bb tooling size is smaller than the standard. I did need to trim a bit off the supplied tool to clear the chainstay when installing it on my bike. I had it on my bike for a year now and had now issues. It comes with 3 spacers, so make sure you measure and check how many spacers you will need.
P**T
excellent BB silky smooth
after a recent long ride that felt like I had rocks in the BB I decided time for a new one.This XT one was well priced, and xt quality is what i likeA relatively quick change later and I am good as new. Very pleased.
P**S
Works well - but may be difficult to fit
Great bottom bracket. It comes with spacers so fits most mountain bikes. Only a couple of pounds more than the lower spec Deore version so I think its worth it. Its been very smooth. The only issue I had was that the end caps are slightly smaller diameter than standard so you need to use the adaptor (supplied with the bracket). This was suposed to fit into a standard shimano or third party spanner but didn't fit the LUPO install spanner I had removed the deore bottoom bracket with.
W**L
Good value bottom bracket
Easy to fit, comes with spacers to tailor position. Thread depth has been reduced but still feels tough. Seem to last 5-8k miles with fairly heavy use (commute / touring).
B**R
Was no good for me other than garage furniture
I found out after installing it that truvative cranks have a thinner diameter axle so wobbled slightly in this truvative has a 22mm, shimano has a 24mm - but none of the youtube videos i watched mentioned this aspect was not standard across the board.
N**Z
Best price!!
Finding this part at this price was amazing!!! Does the job 👍🏾
Trustpilot
3 weeks ago
1 month ago