Praxis TT Aero 130BCD Road Chainring Set – 54/42T
SKU code: DSG-PX5442-0021
In Stock
Bigger gearing for time trials and triathlon. Praxis's TT sets are solid aero rings in 54/42 or 56/42 for 130BCD cranks, with its original LevaTime shift ramps and pins timed across the pair.
Highlights
- 54/42 or 56/42 time trial gearing
- Solid-disc aero/TT styling
- CNC machined 7075-T6 aluminium, hard anodised
- Original LevaTime matched-set shifting
- Works with 130BCD spider-based power meters such as Power2Max, SRM and Quarq
10/11-speed only
Praxis states these TT sets are compatible with 10 and 11-speed drivetrains only at this stage, so they're not a 12-speed option. Praxis reference weight: 54/42 set 210 g. Long and short replaceable threaded chain catch pins are included.
Fitting
Chainring bolts aren't included. Fitting is a separate workshop service and isn't included in the price. Praxis specifies 8-10 Nm for chainring bolts. The Tune workshop can fit the set with the alignment markings and catch pin in the right place, then reset your front derailleur height and limits for the new rings.
Compatibility & fit
- 130BCD road and TT cranks: 5-arm road cranks, and 4-arm cranks with a hidden fifth bolt (such as older SRAM Exogram).
- 130BCD spider-based power meters such as Power2Max, SRM and Quarq.
- Shimano Di2 and mechanical, SRAM eTap and mechanical, and Campagnolo EPS and mechanical, 10/11-speed.
- Not 12-speed compatible.
Options
| Option | Gearing | Notes |
|---|---|---|
| 54/42T | 54/42, 130BCD | 210 g reference |
| 56/42T | 56/42, 130BCD | Weight not published |
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.
- 54/42 or 56/42 TT gearing, 130BCD
- Solid aero ring styling
- CNC machined 7075-T6 aluminium, hard anodised
- Original LevaTime shifting
- 10/11-speed compatible
| Product | 2x TT/aero chainring set |
|---|---|
| BCD | 130 mm (5-arm, or 4-arm with hidden fifth bolt) |
| Material | CNC machined 7075-T6 aluminium, hard anodised |
| Shifting | Original LevaTime |
| Chain | 10/11-speed Shimano, SRAM, Campagnolo, KMC |
| Weight (Praxis reference) | 54/42: 210 g |
| Included | Long and short threaded catch pins |
| Options | 54/42T, 56/42T |
| SKU | DSG-PXROADRINGS-3 |
| Brand | Praxis |
