Retro // Manual // 2024 // CBT Legal

Mutt
Mongrel 125

Name: Mutt Mongrel 125
Brand: Mutt
SKU: CBTBIKE-MUTT-MONGREL-125
Price: 3995 GBP
Availability: InStock
Rating: 4.7 (94 reviews)

Birmingham-built scrambler swagger.

Power

11.7 bhp

Weight

138kg

Top Speed

68 mph

From New

£3,995

Profile silhouette

18" front · seat 780 mm

Colour palette

Tobacco
Olive Drab
Matte Black

Range & economy

Tank12 litres

Economy108 mpg

Realistic range~285 mi

Annual fuel @ 4,000 mi: ~£244

Mutt Motorcycles design every bike in Birmingham. The Mongrel 125 is a flat-tracker / scrambler crossover with knobbly tyres, chunky bars, and a custom-shop finish straight from the factory. Each frame comes with a numbered plaque.

Who it's for

Riders who want a custom-shop look without the custom-shop bill.

Pros

Hand-finished in the UK
Distinctive scrambler styling
Wide aftermarket
Owners' community network

Cons

Chinese-sourced base engine
Spares lead times
Heavier than rivals

Suitability

commuter

7/10

sport

4/10

comfort

6/10

value

7/10

style

9/10

Full Specifications

Engine: Single-cylinder, 4-stroke, SOHC, 2-valve, air-cooled (Suzuki-derived)
Displacement: 124cc
Power: 11.7 bhp @ 9,000 rpm
Torque: 8.0 lb-ft @ 7,000 rpm
Top speed: 68 mph
Fuel economy: 108 mpg
Fuel capacity: 12 litres
Weight: 138 kg (wet)
Seat height: 780 mm
Transmission: 5-speed manual
ABS: Front-only ABS

Brakes: Front: 280mm disc. Rear: 240mm disc.
Suspension: Front: telescopic. Rear: twin shocks.
Wheels & tyres: 18" front, 17" rear spoked, knobbly tyres
Service interval: 3,000 miles / 12 months
Warranty: 2 years parts and labour
Insurance group: Group 10
Available colours: Tobacco, Olive Drab, Matte Black
Price new: £3,995
Price used: £2,700 – £3,400
CBT legal?: Yes
Keepable post-licence?: No — learners only

True cost of owning a Mongrel 125

Estimates for a 25-year-old with one year of CBT licence holding, riding 4,000 miles a year in Zone 2 London. Adjust for your own circumstances.

insurance

£500 / year (third-party fire & theft, 25 yr old, London)

tax

£25 / year (motorcycles ≤150cc)

mot

£29.65 / year (compulsory from year 3)

fuel

~£244 / year at 4,000 mi (£1.45/L)

service

~£165 / minor service

Day-one essentials

ECE 22.06 full-face helmet

£120 – £400

CE Level 2 armoured jacket

£150 – £350

Disc lock + reminder cable

£35 – £75

Sold Secure Gold chain + ground anchor

£90 – £180

Tail-pack 25L

£75 – £160

All-weather cover + bike socks

£30 – £80

Best for

Custom-look first bikes
City riders
Café scene regulars

Insider trivia

— Mutt was founded in Digbeth, Birmingham in 2014.
— Each bike ships with a numbered build plaque.
— Featured in BikeShed and Bike EXIF magazines.

Owner FAQs

Can I ride the Mongrel 125 on a CBT?: Yes — the Mutt Mongrel 125 is fully CBT-legal in the UK. With L-plates and a valid DL196 you can ride it for two years before progressing to A1, A2, or full A.
What licence do I need to take L-plates off the Mongrel 125?: You need an A1 (17+), A2 (19+) or full A (24+) licence and Module 1 / 2 pass — this 125 itself is restricted to learners.
Is the Mongrel 125 reliable?: Mutt has a 2 years parts and labour warranty on the Mongrel 125. Mutt was founded in Digbeth, Birmingham in 2014.
What is the real-world range?: Claimed economy is 108 mpg and the tank is 12 litres, giving a theoretical range of 285 miles. Real-world budget around 80% of that.
What insurance group is the Mongrel 125?: Group 10. As a rough guide, a 25-year-old in zone 2 London with no claims pays around £500 per year third-party fire & theft.
Is the Mongrel 125 good for delivery / courier work?: It's possible, but a scooter like the PCX 125 or SH125i is the standard courier choice. Manual gearboxes slow down stop-start delivery work.