BuildMyMTB

Builders
About
Theme ▾
Prototype · evolving daily · ✓ = verified vs manufacturer · the rest is sample data Every tool we ship carries this same honesty strip.

Browse bike parts, click to add, and it checks fit, price and weight as you build.

Sample builds ▾
Each click rolls a fresh random build in that style, always complete, always conflict-free. Your current picks are replaced.
No conflicts found Check first: adds a warning (open the part for why) Won’t fit (open the part for why) Nothing selected yet: no data to judge ✓ Verified = interfaces & weight checked vs manufacturer spec; open a part to see whether its price is a confirmed MSRP or still a sample (else ≈ estimate) No ✓ usually means the maker doesn't publish the spec, not that the part is worse.

A green dot means no conflict among the dimensions we check. Some parts publish no data, so it's not a guarantee of perfect fit.

What we check, and what we don’t

BuildMyMTB Discussions

Rider profile

Guides

Plain-language buyer's and compatibility guides for the enthusiast home mechanic: how mountain-bike standards fit together, the real-world trade-offs, and how the builder checks each one, plus a growing set of riding-skills guides covering body position, braking, cornering, and terrain features. Brand-neutral and free of affiliate links.

⚐ Report a wrong verdict

Spotted a fit we got wrong, or a wrong spec? Real builds are how these rules get checked. This sends a description of your current build. No account needed.

Preview the report 

    

  

  

    
    
    
  




  

    
Complete build

    
Every slot filled. Here’s the whole bike, with kit pricing where a full set is selected.

  

  

    

    

    
Sample total

    
Est. weight

  

  

    
    
    
  




  

    

    

  

  

    

    
    
    
    
    

    

    

    

    

    
    

    

  

  

    
  




  

    
Compare two builds

    
Compare two builds side by side. Signed in, pick any two of your saved garage builds (or one against your
    current build); or paste any build’s share link. No login needed.

  

  

    
    
    
    
    

  

  

    
    
  




  

    
Spec-card image

    
A shareable graphic of your build. Download it to post or send. Specs are illustrative sample data unless a part shows ✓ Verified in the app.

  

  

    

  

  

    
    
  




  

    
Build sheet

    
A clean printable spec sheet of your build. Hand it to your mechanic or pin it on the workbench. Specs are illustrative sample data unless a part shows ✓ Verified in the app.

  

  

    

  

  

    
    
  






  

    
Sign in to BuildMyMTB

    
Save builds, track the parts you own, and post on the forum.

  

  

    
    
    
    

      
      
    

    
    
    

      
      
    

    
    
    

    

      
    

    
    

      
    

  

  

    
    
    
  







  

    
Upgrade optimizer

    
Where is the cheapest weight on your bike? Swaps ranked by cost per gram saved, only when both weights are ✓ Verified, at MSRP, fit-checked against your current build. Specs are illustrative sample data unless a part shows ✓ Verified in the app.

  

  

    

  

  

    
  





  

    
Owned vs to-buy

    
Which of this build’s parts are already in your inventory (matched by catalog part, not condition) and what’s left to buy at each part’s own MSRP. Specs are illustrative sample data unless a part shows ✓ Verified in the app.

  

  

    

  

  

    
  






  

    
Why this?

  

  

    

  

  

    
  




  

    
Discontinued archive

    
Parts our records show as no longer sold new. They stay browsable for old builds and used-market shopping, with the replacement named where our data records one. Specs are illustrative sample data unless a part shows ✓ Verified in the app.

  

  

    

  

  

    
  






  

    
＋ New thread

    
Start a discussion: bug report, build question, feature request.

  

  

    

      
      
    

    
    
    

      
      
    

    

  

  

    
    
  





  

    
Your profile

    
Pick a username. It shows on your forum threads and replies instead of your email.

  

  

    

      
      
      
3–24 characters: letters, numbers, spaces, hyphens or underscores.