JT Sprockets Steel Rear Sprocket JTR1340.45 – 45T
The JT Sprockets JTR1340.45 steel rear sprocket is a high-precision 45-tooth replacement for selected Honda road models, engineered for durability, accurate power transfer and long service life with 530 drive chains.
Main features
- Computer-optimised design for high strength with minimal weight.
- Manufactured from premium heat-induction hardened high-carbon steel for long-lasting wear resistance.
- Precision-machined tooth profile for smooth, efficient power delivery and reduced drivetrain lash.
- Bead-blasted surface to reduce material surface tension and improve fatigue strength.
- OEM-style mounting pattern for straightforward installation on compatible Honda rear hubs.
- Designed to meet or exceed motorcycle-industry quality and accuracy standards.
Technical details
| Brand | JT Sprockets |
| Part number (SKU) | JTR1340.45 |
| Product type | Rear sprocket |
| Material | Heat-induction hardened high-carbon steel |
| Teeth | 45 |
| Chain pitch | 530 |
| Colour / finish | Silver, bead-blasted |
| Manufacturing | CNC-machined, hobbed and drilled for high accuracy |
Compatibility
The JTR1340.45 sprocket is designed for selected Honda road motorcycles using a 530 chain and the corresponding rear hub fitment includes the following models:
| Brand | Model | Year |
| Honda | CB1000R | 2008–2010 |
| Honda | CB1000R | 2011–2016 |
| Honda | CB1000R ABS | 2009–2010 |
| Honda | CB1000R ABS | 2011–2016 |
| Honda | VFR 750 F | 1990–1991 |
| Honda | VFR 750 F | 1992–1993 |
| Honda | VFR 750 F | 1994–1997 |
| Honda | VFR 800 F | 1998–2001 |
| Honda | VFR 800 F (ABS) | 2002–2005 |
| Honda | VFR 800 F (CBS) | 2002–2005 |
| Honda | VFR 800 F | 2006–2013 |
| Honda | VFR800X Crossrunner | 2011–2014 |
On many of these models the 45-tooth sprocket can be used to alter the final-drive ratio compared with standard gearing, offering the possibility of either slightly shorter or longer gearing depending on the original rear sprocket size.
Typical use cases
- Replacement rear sprocket for worn or damaged original components on compatible Honda road bikes.
- Fine-tuning of final-drive ratio for sportier acceleration or more relaxed cruising, depending on model and existing gearing.
- Routine drivetrain refresh when renewing chain and front sprocket as part of scheduled maintenance.
- Use in daily commuting, touring and spirited road riding where long-term durability and consistent performance are required.
Benefits
- High wear resistance supports extended service intervals under normal use.
- Accurate tooth geometry contributes to smooth chain engagement and reduced noise.
- Robust steel construction provides high fatigue strength for powerful road motorcycles.
- OEM-style fitment maintains correct chain alignment when installed on listed applications.
