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Praxis Works Girder MTB Crankset
June 12, 2025$341.00
Top-level XC/Trail crank for Praxis M30 bottom brackets
A 10% Tariff Surcharge applies to this product, as required by the manufacturer. To keep things simple, this amount is already included in the listed price—no surprise at checkout.
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Praxis Works Girder MTB Crankset
The Praxis Works Girder MTB Crankset your is top-level XC and Trail crank with premium finish. Featuring a full carbon fiber construction, the Girder’s crank arms are light, stiff and ready for the trails. The Girder crankset is compatible with 3-bolt direct mount chainrings and fits Super Boost (55 mm chainline), Boost (52 mm chainline) and Standard (49 mm chainline) frames.
Key Product Details
Compatibility:
The Praxis Girder MTB Crankset is compatible 3-bolt direct mount chainrings, as well as with the power2max Praxis MTB Power Meter. It uses a M30 spindle (30 mm/28 mm) spindle and fits Praxis M30 bottom brackets.
Key Features:
Carbon fiber crank arms, M30 spindle (30 mm/28 mm), Praxis 3-Bolt Direct Mount interface, 498 grams (170 mm), 2-year warranty. See Specs tab for more information.
Advice From Our Staff:
The Girder is our go-to XC/Trail crankset. It’s not as sexy as the LYFT, but you still get carbon fiber cranks and premium fitment for a very reasonable $310.
Praxis MTB Crankset Comparison
| Model | Price | Crank Arms | Spindle Size | Weight (170 mm) | Takeaway |
| Praxis Works Cadet MTB Crankset | $175 | Aluminum | M30 (30 mm/28 mm) | 558 grams | Value friendly XC/Trail crankset |
| Praxis Works Cadet HD MTB Crankset | $175 | Aluminum | M30 (30 mm/28 mm) | 640 grams | Value friendly enduro crankset |
| Praxis Works Girder MTB Crankset | $310 | Carbon | M30 (30 mm/28 mm) | 498 grams | Top-level XC/Trail crank with a premium finish |
| Praxis Works Girder HD MTB Crankset | $310 | Carbon | M30 (30 mm/28 mm) | 545 grams | Top-level enduro crank with a premium finish |
| Praxis Works G2 LYFT MTB Crankset | $420 | Carbon | 30 mm | 420 grams | Praxis’ lightest and stiffest Pro-level XC and trail crankset |
Other Versions to Consider
LYFT MTB Crankset: We also sell the Praxis Works LYFT MTB Crankset. The LUFT is Praxis’ flagship MTB XC/Trail crankset. It’s also pricer at $450.
Girder HD Crankset: If you are looking for an Enduro crank that is fully huck-worthy, we might recommend the Praxis Girder HD. It’s very similar to the Girder here, but features slightly beefed up 545-gram crank arms.
Compatibility
- Chainring/Power Meter: This crankset is compatible 3-bolt direct mount chainrings, as well as with the power2max Praxis MTB Power Meter
- Bottom Bracket: It fits Praxis M30 (30 mm/28 mm) bottom brackets
Praxis Girder Specs
- Interface: Praxis 3-Bolt Direct Mount
- Crank Arm Material: Carbon fiber
- Spindle Size: M30 (30 mm/28 mm)
- Chainrings: 1x
- Chainline: Super Boost 55 mm (with 0 mm offset ring) | Boost 52 mm (with 3 mm offset ring) | Standard 49 mm (with 6 mm offset ring)
- Q-Factor: 178 mm
- Weight: 498 grams (170 mm)
- Warranty: 2 years
Tools Needed for Installation
You will need the following tools for installation of this product. You can shop for the required tools on our Tools Page.
- 8 mm Allen key
- T25 Torx bit
Q&A
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