Royal Enfield Guerrilla 450 Maintenance Schedule and Service Info
This is the maintenance schedule and associated service intervals for the Royal Enfield Guerrilla 450. The Guerrilla 450 shares its platform and mechanicals with the New Himalayan 450, developed in parallel as part of Royal Enfield’s new modern lineup. Both use the 452cc liquid-cooled “Sherpa” single-cylinder engine, with dual overhead cams and four valves per cylinder. Output is 39.5 hp at 8,000 rpm and 29.5 lb-ft of torque at 5,500 rpm. Fuel delivery is via ride-by-wire throttle and electronic fuel injection.
The steel tube frame uses the engine as a stressed member. Compared to the Himalayan, the Guerrilla 450 features a revised frame with steeper 21.8° rake, shorter subframe, 17-inch cast wheels front and rear, and a lower 30.7-inch seat height. Suspension is by Showa: 43mm conventional fork (non-adjustable) with 5.5 inches of travel, and a linkage-type monoshock rear (preload adjustable) with 5.9 inches of travel. Brakes are ByBre, with a 310mm front disc and 270mm rear disc, both with dual-channel ABS.
Three trim variants are available:
- Analogue: Analog/LCD dash; available in Smoke and Playa Black
- Dash: TFT Tripper Dash; available in Playa Black and Gold Dip
- Flash: TFT Tripper Dash with full navigation; available in Brava Blue and Yellow Ribbon
All variants have LED lighting; higher trims include a 4-inch Tripper TFT dash with phone connectivity and navigation. Fuel capacity is 2.9 gallons. All service points and maintenance requirements are the same across versions, and updates to brakes or dash do not affect the schedule.
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Royal Enfield Guerrilla 450 Service Intervals
The Royal Enfield Guerrilla 450 requires basic service every 3,000 miles / 5,000 km or 6 months, whichever comes first. For most riders, this means an oil change and a regular inspection twice a year. Note the UK manual requires basic service every 6,000 miles / 10,000 km or 12 months. Service more frequently if you ride in harsh or dusty conditions.
Basic Service Interval Schedule
- Oil and Filter Change: Every 6,000 miles / 10,000 km or 12 months.
- First Service (Break-in): At 300 miles / 500 km or 1 month from new.
General Notes on Serviceability of the Royal Enfield Guerrilla 450
- The Guerrilla 450 uses a 452cc liquid-cooled DOHC single-cylinder engine with a six-speed gearbox.
- Most regular service points are accessible, and no specialty tools are required for basic checks.
- The schedule repeats after 50,000 km / 30,000 miles.
Follow the schedule closely for reliable performance and long engine life.
Royal Enfield Guerrilla 450 Maintenance Schedule Tables
Below is the maintenance schedule for the Royal Enfield Guerrilla 450. It’s based on the official owner’s manual but reorganized into a clearer, more user-friendly format.
The schedule is divided into five parts:
- First service: Every 300 miles / 500 km or 1.5 months, whichever comes first.
- Regular maintenance: Every 600 miles / 1,000 km, or after any major ride.
- Periodic maintenance: Every 3,000 miles / 5,000 km or 6 months, whichever comes first.
- Annual maintenance checklist: Recommended checks to perform every 12 months.
- Long-term service intervals: Items that require attention at longer, sporadic intervals.
First Service
The following tasks should be completed at the first service, which is due at 300 miles / 500 km or 1.5 months, whichever comes first.
| First Service Maintenance |
|---|
| Change engine oil (Castrol Power 1 45 10w-40) |
| Check oil level and top up as needed |
| Change engine oil filter |
| Inspect clutch cable / lever free play |
| Lubricate clutch lever & front brake lever pivots |
| Check brake pads – front & rear |
| Check brake fluid – front & rear |
| Lubricate rear brake pedal pivot |
| Check brake hose and banjo bolt – front & rear |
| Inspect steering movement |
| Inspect wheel rim run out front and rear |
| Inspect rear wheel drive chain |
| Inspect battery terminals (apply petroleum jelly) |
| Inspect tire wear pattern front & rear |
| Lubricate side stand & centre stand pivots |
| Lubricate rider & pillion footrest pivots |
| Inspect engine mount, swing arm, front & rear wheel spindle, T Stem Pinch bolts, rear sub frame mounting bolts, rear linkage |
Regular Maintenance
Do the following checks for the Guerrilla 450 every 600 miles / 1000 km or every 6 months, whichever comes first.
Note: Rear wheel drive chain should be cleaned, lubricated and adjusted every 500 km (or earlier as needed), or after riding in wet/dusty/muddy conditions.
| Regular Service |
|---|
| Clean, inspect, lubricate and adjust rear wheel drive chain (every 500 km or earlier) |
| Check oil level and top up if necessary (Castrol Power 1 45 10w-40) |
| Check coolant level in expansion tank and top up as required |
| Check clutch cable free play. Adjust if necessary |
| Lubricate clutch lever & front brake lever pivots (Lithium soap-based grease) |
Periodic Maintenance Checklist
Perform the following tasks every 3,000 miles / 5,000 km or 6 months, whichever comes first. These tasks are also included in the annual maintenance checklist. Note that the UK manual follows a different schedule, with service done only once a year as part of the annual maintenance. Both the UK and international service intervals are provided in this section: Screenshots from the Royal Enfield Guerrilla 450 Owner’s Manual.
| Periodic Maintenance |
|---|
| Check brake pads – front & rear |
| Check brake fluid – front & rear |
| Lubricate rear brake pedal pivot |
| Inspect steering movement |
| Inspect wheel rim run out front and rear |
| Inspect battery terminals (apply petroleum jelly) |
| Inspect tire wear pattern front & rear |
| Lubricate side stand & centre stand pivots |
| Lubricate rider & pillion footrest pivots |
| Inspect engine mount, swing arm, front & rear wheel spindle, T Stem Pinch bolts, rear sub frame mounting bolts, rear linkage |
Annual Maintenance Checklist
Below is the annual maintenance checklist for the Royal Enfield Guerrilla 450. All periodic maintenance tasks (see above) should also be completed at this time. Perform these checks every 6,000 miles / 10,000 km or every 12 months, whichever comes first.
| Annual Maintenance Checklist |
|---|
| Change engine oil |
| Change engine oil filter |
| Inspect HT lead |
| Inspect rubber hose, air filter to throttle body |
| Inspect rubber hose, inlet manifold / adapter |
| Inspect evaporative emission equipment rubber hoses |
| Change air filter element with O Ring on Cover Clean / Replace more frequently if operated in dusty conditions |
| Inspect vent pipe under air filter box |
| Inspect fuel pump (under tank) mounting |
| Check brake hose and banjo bolt – front & rear |
| Inspect earth wire eyelet tightness |
Long-Term Service Intervals
The following tasks are required less frequently, at longer intervals. While they are not part of regular or annual service, they are essential for long-term performance and reliability. Refer to the maintenance schedule table below for the recommended intervals.
| km x 1000 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 |
|---|---|---|---|---|---|---|---|---|
| mi x 1000 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 |
| Months | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 |
| Check and adjust inlet and exhaust valve clearance | ✓ | ✓ | ✓ | |||||
| Inspect spark plug | ✓ | |||||||
| Change spark plug | ✓ | |||||||
| Change fuel pump strainer | ✓ | |||||||
| Clean throttle body. Throttle body should be removed from the vehicle and cleaned with a dry microfibre cloth. Do not use throttle body cleaners or alcohol based liquids for cleaning. | ✓ | |||||||
| Change brake fluid – front & rear | ✓ | ✓ | ||||||
| Inspect rear wheel cush rubbers | ✓ | ✓ | ✓ |
Tire sizes and pressures for the Royal Enfield Guerrilla 450
The Guerrilla 450 is equipped with alloy wheels and tubeless tires. Recommended tire sizes and pressures are as follows:
| Wheel | Tire size | Tyre pressure (cold, single rider) |
|---|---|---|
| Front | 20/70R17 58H | 32 psi/2.24 bar |
| Rear | 160/60R17 69H | 36 psi/2.5 bar |
About the Royal Enfield Guerrilla 450
Royal Enfield has a habit of surprising everyone, and with the Guerrilla 450, they’ve given us a street-focused machine that shakes up the brand’s traditional lineup. Built alongside the Himalayan 450, the Guerrilla shares its core platform and engine but takes those bones in a much more urban, roadster direction. If you’ve ever wished the Himalayan felt snappier on tarmac or you looked at bikes like the KTM 390 Duke or Triumph Speed 400 and thought, “I want some of that, but with Royal Enfield flavor,” this one is worth a look.
| Feature | Guerrilla 450 | Himalayan 450 |
|---|---|---|
| Intended Use | Urban, street, light sport, all-round roadster | Adventure, off-road, touring |
| Power (claimed) | 40 PS (39.5 hp) @ 8000 rpm | 24.3 bhp @ 6500 rpm |
| Torque (claimed) | 40 Nm @ 5500 rpm | 32 Nm @ 4000-4500 rpm |
| Suspension | 140 mm front, 150 mm rear | 200 mm front, 180 mm rear |
| Other Notables | More aggressive geometry, lower seat, urban focus | Tall suspension, large tank, adventure focus |
At the heart is the Sherpa engine: a 452cc liquid-cooled, DOHC single pumping out 39.5 hp and 29.5 lb-ft of torque. The Guerrilla spins up fast and pulls hard through the mid and upper revs, feeling lively all the way to 9,000 rpm. Royal Enfield has tweaked the ride-by-wire throttle to give a more urgent response than its ADV sibling, and you get two riding modes—Performance and Eco—for either spirited fun or relaxed commuting. The six-speed gearbox and slip/assist clutch keep things user-friendly in traffic or on twisty roads.
The chassis is built around a steel tube frame with a 21.8° rake and a shorter subframe for nimble handling. Showa provides the suspension: a 43mm fork up front (non-adjustable) and a linkage-type monoshock in the rear with preload adjustment. Cast 17-inch wheels wear CEAT Gripp tires, and the brakes are handled by ByBre with a 310mm front disc and a 270mm rear, both with ABS. The seat height sits at a very approachable 30.7 inches, making it easy to flat-foot in traffic or at a stoplight.
Riding the Guerrilla 450 feels planted and playful. Whether slicing through city traffic or flicking through mountain curves, the bike stays composed, and the suspension feels sorted for a mix of real-world roads. Some vibration sneaks in through the pegs above 4,500 rpm, but it’s nothing that ruins the ride. The fuel tank holds 2.9 gallons, so range is more urban than touring, but for city duty and short blasts, it’s plenty.
There are three trims: Analogue (with an analog/LCD dash), Dash (featuring Royal Enfield’s Tripper TFT Dash), and Flash (which adds full navigation and a premium color scheme). The Tripper Dash is a highlight, offering Google-based navigation and multiple display layouts through the RE app—just keep your phone charged. All models get full LED lighting, and Royal Enfield has more accessories in the works.
Maintenance is straightforward, and most of the service points are easy to reach. Oil changes, valve checks, and the occasional chain lube are the main things to keep on top of, and the single-cylinder layout keeps life simple.
References — Screenshots from the Royal Enfield Guerrilla 450 Owner’s Manual (Rest of the World)
The above info was sourced from the owner’s manual for the Royal Enfield Guerrilla 450 (Rest of the world).
References — Screenshots from the Royal Enfield Guerrilla 450 Owner’s Manual (UK)
As the schedule is simpler for the UK, the screenshots of the UK manual can be found below:
You can download it from the Royal Enfield website here.
