| Component | Specification |
|---|---|
| Model / Generation | Honda CMX 1100 Rebel DCT (SC87B) 2021 – Present |
| Engine Oil | SAE 10W-30 JASO T 903 MA (4.0 L) |
| Tires (Front/Rear) | F: 130/70B18 M/C 63H / R: 180/65B16 M/C 81H |
| Tire Pressure | F: 2.5 bar (36 psi) / R: 2.9 bar (42 psi) |
| Battery | YTZ14S |
| Spark Plug | NGK SILMAR8A9S |
Engineering Highlight: The Africa Twin DNA
While the Honda CMX 1100 Rebel (SC87B) shares its 1084cc parallel-twin architecture with the CRF1100L Africa Twin, it features a critical engineering divergence: a 32% increase in flywheel mass. This modification, combined with specific valve timing and lift profiles, transforms the high-revving adventure power plant into a torque-heavy cruiser engine. The 270-degree crankshaft remains, providing the uneven firing order and ‘thumping’ character essential for the modern bobber aesthetic while maintaining exceptional primary balance.
Technical Review: The DCT Advantage
The SC87B variant features Honda’s third-generation Dual Clutch Transmission (DCT). Unlike standard automotive DCTs, this unit is programmed with four distinct shift schedules linked to the Riding Modes (Standard, Rain, Sport, and User). The integration of a Ride-by-Wire throttle system allows the ECU to manage downshift blips and clutch engagement speeds with millisecond precision, significantly reducing drivetrain lash—a common issue in high-torque parallel twins.
Maintenance Guide & Technical Requirements
Lubrication System
For the DCT model, oil management is critical as the engine oil also serves as the hydraulic fluid for the clutch actuators. Honda specifies SAE 10W-30 JASO T 903 MA. The total capacity for an oil and filter change is 4.0 liters. It is imperative to use the correct JASO MA specification to ensure the wet clutches do not slip or suffer from premature wear.
Chassis and Contact Patch
The Rebel 1100 utilizes a unique tire combination designed for stability at lean. The front 130/70B18 and rear 180/65B16 must be maintained at 36 psi (2.5 bar) and 42 psi (2.9 bar) respectively. Given the bike’s low center of gravity and 233kg kerb weight (DCT version), maintaining these pressures is vital to prevent ‘heavy’ steering and cupping of the front tread.
Electrical System
The SC87B utilizes a YTZ14S battery. Due to the high electrical draw of the DCT solenoids during startup and gear selection, ensuring the battery is at peak health is mandatory. If the bike is stored for more than two weeks, a dedicated AGM-compatible tender is recommended to prevent logic errors in the TCM (Transmission Control Module).
Frequently Asked Questions
Q: How often should I change the spark plugs?
A: The NGK SILMAR8A9S Iridium plugs are high-longevity components, typically inspected at 16,000 miles (25,600 km) and replaced at 32,000 miles (51,200 km).
Q: Is there a separate filter for the DCT?
A: Yes, the DCT model features a secondary clutch oil filter that must be replaced concurrently with the primary engine oil filter to maintain hydraulic integrity.