IRC Gekkota Tyre Comparison: GX20 vs JX8 vs VE-33S
Choosing between the IRC GX20, JX8 and VE-33S Gekkota can be confusing because all three suit enduro riding, but their carcass and tread designs create different riding characteristics. This guide compares the three IRC rear tyres available from APW Enduro Tyres so Australian riders can match the tyre to their terrain, bike and riding style.
Quick comparison: GX20 vs JX8 vs VE-33S
| IRC model | Best suited to | Carcass and feel | Sizes |
|---|---|---|---|
| GX20 | Mixed hard enduro, technical trails and FIM-style riding | Lightweight 2-ply plus breaker; balanced grip and stability | 140/80-18 |
| JX8 | Extreme obstacles and riders wanting traction with extra support | Supportive 3-ply carcass, firmer sidewall and reinforced centre knobs | 110/100-18, 120/100-18, 140/80-18 |
| VE-33S | Technical single-track and maximum terrain compliance | Super-soft compound, 2-ply plus breaker and tall flexible blocks | 110/100-18, 120/100-18, 140/80-18 |
IRC GX20 Gekkota: lightweight FIM-spec all-rounder
The GX20 is the lightest 140/80 Gekkota rear tyre in the current APW range at approximately 5.8 kg. Its 13 mm FIM-spec tread and 2-ply plus breaker carcass balance traction, stability and shock absorption without giving the bike an overly heavy feel.
Choose the GX20 for mixed technical riding, an FIM-style tread and balanced performance rather than the softest possible feel. It is stocked here in 140/80-18 only.
IRC JX8 Gekkota: super-gummy grip with extra support
The JX8 combines IRC’s super-gummy tread compound with a supportive three-ply carcass and firmer sidewall. This controls flex and improves straight-line drive stability over rocks, ledges and other hard enduro obstacles. Extra rubber supports the centre knobs for improved tread rigidity and durability.
Choose the JX8 for extreme hard enduro when you want maximum traction plus carcass stability, drive and reinforced tread blocks. Sizes are 110/100-18, 120/100-18 and 140/80-18.
IRC VE-33S Gekkota: super-soft terrain compliance
The VE-33S uses IRC’s super-soft Gekkota compound with a puncture-resistant 2-ply plus breaker carcass. Its tall tread blocks flex to create a larger contact patch, while the compliant construction helps absorb bumps and follow uneven terrain.
Choose the VE-33S for technical single-track and hard enduro when maximum softness and terrain compliance are the priorities. Sizes are 110/100-18, 120/100-18 and 140/80-18.
Which IRC tyre suits your riding?
- Mixed trail and hard enduro: GX20 for its lighter, balanced construction and FIM-spec tread.
- Extreme obstacles with a supported feel: JX8 for its three-ply carcass, firmer sidewall and reinforced knobs.
- Maximum softness and compliance: VE-33S when you want the tyre to flex and conform closely to uneven terrain.
- Need 110/100-18 or 120/100-18: choose the JX8 or VE-33S, because the GX20 stocked here is 140/80-18 only.
Mousse and TUbliss compatibility
Sidewall size is only the starting point when selecting a mousse. Internal volume, carcass construction and rim width affect fit and pressure-like feel. Check the NitroMousse fitment chart for the exact tyre model and rim, or ask APW for fitment advice. TUbliss users should confirm the rim diameter and width and follow the system’s installation and pressure guidance. Read our mousse vs TUbliss comparison before choosing a setup.
IRC Gekkota frequently asked questions
Which IRC Gekkota is the softest?
The VE-33S is the super-soft, compliance-focused choice. The JX8 also has a super-gummy tread but pairs it with a more supportive three-ply carcass and firmer sidewall.
Which model has the most supportive carcass?
The JX8 uses a three-ply carcass. The GX20 and VE-33S use 2-ply plus breaker constructions.
Which IRC tyre has an FIM-spec tread?
The GX20 sold by APW Enduro Tyres uses a 13 mm FIM-spec enduro tread.
Need help choosing?
APW Enduro Tyres keeps Australian stock and provides practical fitment advice through APW Motorcycles in Long Jetty, NSW. Call 02 4333 4797 or send an enquiry with your bike, current tyre size, terrain and riding style. Free Australia-wide delivery applies when you buy two or more tyres.