A light alloy narrow/wide ring for mountain bikes running a 4-bolt 104BCD crank or spider. Praxis rates it tough enough for enduro and downhill yet light enough for XC, and it suits 104BCD spider-based power meters.

Highlights

  • Narrow/wide teeth for 1x chain retention
  • Forged and machined 7000-series aluminium, hard black anodised
  • Light: Praxis quotes 35 g for a 32T
  • 10/11/12-speed KMC, Shimano and SRAM chains, including Eagle, Flattop and T-Type
  • Suits 104BCD spider-based power meters from brands such as Power2Max and SRM

Setup notes

Praxis requires a clutch rear derailleur and recommends an upper chain guide in rough terrain or for extra security.

eBikes

Praxis designed this ring for non-assisted bikes. Motor power and torque wear alloy rings much faster, so for an eMTB Praxis recommends its steel MTN E-Ring instead.

Fitting

Fitting is a separate workshop service and isn't included in the price. The Tune workshop can measure your crank or spider to confirm it's 104BCD, fit the ring and check chain length and chainline.

Compatibility & fit

  • 4-bolt 104BCD MTB cranks and spiders. Measure first: it won't fit the smaller 94BCD pattern.
  • Shimano mechanical and Di2, and SRAM mechanical and wireless, 10/11/12-speed.
  • Clutch rear derailleur required.
  • Not recommended for eBikes; see the Praxis MTN E-Ring.

Options

OptionNotes
30TSmallest option
32T35 g Praxis reference weight
34T—
36TLargest option

Praxis warrants its components to be free from defects in materials and workmanship for 2 years from the original purchase date, for the original owner. Normal wear and tear isn't covered, and for chainrings Praxis lists tooth wear and the anodised or coated finish wearing off as wear. Damage from crashes, impact, incorrect installation (including the wrong tools) or modification is also excluded.

This cover is in addition to your rights under the Australian Consumer Law. Keep your proof of purchase. For warranty support, return the product to Tune Cycles and we'll manage the claim with Praxis's Australian distributor.

  • Narrow/wide 1x tooth profile
  • 4-bolt 104BCD
  • Forged and machined 7000-series aluminium, hard black anodised
  • 10/11/12-speed chain compatible
  • Suits 104BCD spider power meters
Product1x MTB chainring
BCD104 mm, 4-bolt
Tooth profileNarrow/wide
MaterialForged and machined 7000-series aluminium, hard black anodised
Chain10/11/12-speed KMC, Shimano, SRAM (Eagle, Flattop, T-Type)
Rear derailleurClutch type required
Weight (Praxis reference)32T: 35 g
Options30T, 32T, 34T, 36T
SKU DSG-PXALLOY104
Brand Praxis

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