ICE IRC SX Type I chain tensioner for 10mm frame and 15/10mm axle

Here's the new version of our IRC, the SX, adapted for riders with big WATTS!

This innovation was designed in France to solve recurring problems that riders have been facing for many years (hard points, chain tension and sprocket changes without upsetting the rear wheel).
IRC SX type l is designed for traditional 10mm dropouts, to fit wheels with 15 or 10mm axles when using the 10-15mm adapters supplied with the IRC.

The I.R.C SX System creates permanent tension on the chain thanks to the new, longer clevis which is attached to a CNC stainless steel pin, articulated by two ring bearings and a stainless steel spring.
Tension is exerted on the chain via the derailleur pulley (also mounted on a ring bearing and stainless steel axle) and the Teflon roller, ensuring smoothness and reduced resistance when pedaling.
Chain adjustment is performed via the derailleur roller and Teflon roller (lateral adjustment). The whole assembly is mounted on stainless steel pins for precise lateral adjustment. Once set, the position of the axle can be locked by means of a 4mm screw in the clevis.

The advantages of the IRC SX:
1. no more hard points (caused either by the sprocket, the pinion or the crankset): in fact, the clevis is mounted on a spring, automatically correcting any machining defects in your transmission parts.

2.change the sprocket without dismounting the rear wheel , which is very practical during training sessions or races: it will take you just 2 minutes of handling and will save you precious time.

Features :

- Designed, developed and tested in France.
- Supplied with left-hand chain tensioner
- Available in two versions, to fit several standard Ø 20, 15 and 10mm horizontal lugs.
- Fully removable IRC with BTR wrenches.
- Adjustable horizontal chain tensioner with 2 stainless steel BTR screws.
- 11-tooth aluminum derailleur pulley mounted on sealed bearings.
- Teflon roller, mounted on sealed bearing.
- CNC Z15Cn17 stainless steel body/clevis junction pin mounted on 2 ring bearings.
- Heat-treated stainless steel tension spring
- CNC derailleur roller axle in Z15Cn17 stainless steel.
- CNC aluminum 15 to 10mm adapter

Weight: 175 g (right + left tensioner)


*WARNING* our IRC tensioning system is not compatible with 1/8' chains.