Call Us ☎️: 01539 312550 or WhatsApp 🤳 :

Grit 4540 Evolution
Grit 4540 Evolution
Grit 4540 Evolution
Grit 4540 Evolution
Load image into Gallery viewer, Grit 4540 Evolution
Load image into Gallery viewer, Grit 4540 Evolution
Load image into Gallery viewer, Grit 4540 Evolution
Load image into Gallery viewer, Grit 4540 Evolution

Grit 4540 Evolution

Mapdec Cycle Works

Beyond the Pavement. Built for Gravel Adventures.

The Grit 4540 Evolution is the wheelset for riders who refuse to choose between road speed and off-road capability. Designed for modern gravel racing, all-road adventures, and rough pavement, it delivers the perfect combination of low weight, durability, and confidence across any terrain.

A 24mm internal width, hooked rim profile, and variable-depth 45–40mm design optimize wider tires for speed, comfort, and control. Princeton's patented Radially Staggered Lacing maximizes stiffness and power transfer, while the holeless rim bed makes tubeless setup fast, simple, and reliable.

£3,450.00 GBP
£3,450.00 GBP
Sale Sold out
/
Tax included.
This is a pre order item. We will ship it when it comes in stock.
Design Your Custom Bike
Design Your Custom Bike

  • Design Your Custom Bike

  • A custom bike should fit you—not the other way around.
Our Process

Chat with a Mechanic | Free Consultation

A custom build is more than just a bike — it’s a ride tailored to your body, your goals, and your style. Fill out the form below and our mechanics will get back to you to discuss your project in detail.

Custom Image Gallery
Mapdec Brands

Shop All Framesets

Wilier Filante SLR Frameset Wilier Filante SLR Frameset
+6
+5
+4
+3
+2
+1
£4,300.00 GBP
£4,300.00 GBP
£4,050.00 GBP
The Wilier Filante SLR is an ultra-lightweight aero road bike with an exceptional stiffness-to-weight ratio, delivering elite-level speed with refined Italian design. Proven at the highest level by...
LOOK 785 Huez RS LOOK 785 Huez RS
+2
+1
£2,990.00 GBP
£2,990.00 GBP
The 785 Huez RS is LOOK Cycle’s lightest bike. Designed for climbers looking for a unique product with exceptional efficiency, it delivers ultimate performance the moment the road tilts upward. Wit...
Wilier Verticale SLR Frameset Wilier Verticale SLR Frameset
+4
+3
+2
+1
from £5,220.00 GBP
from £5,220.00 GBP
The Wilier Verticale SLR is Wilier's lightest ever road bike, purpose-built for riders seeking ultimate climbing performance and race-ready responsiveness. Its advanced Toray carbon construction an...
Wilier Rave SLR ID2 Frameset Wilier Rave SLR ID2 Frameset
+2
+1
£2,999.00 GBP
£2,999.00 GBP
The Wilier Rave SLR iD2 is a pure race-bred aero gravel machine, combining lightweight carbon construction with enhanced stiffness and aerodynamic efficiency for uncompromising speed on and...
TIME ADHX 45 TIME ADHX 45
+4
+3
+2
+1
from £3,299.00 GBP
from £3,299.00 GBP
This frame takes 10 days to arrive at Mapdec. Build for maximum gravel performance. The ADHX 45 is the most aggressive off-road bike in the TIME lineup, built for riders who want a smooth and respo...
TIME Scylon TIME Scylon
+4
+3
+2
+1
£4,399.00 GBP
£4,399.00 GBP
This frame takes 10 days to arrive at Mapdec. The 2025 TIME Scylon— crafted for precision handling, and ultimate speed. Engineered with our next-gen carbon fiber technology, this aero bike is desig...
Wilier Filante SL Frameset Wilier Filante SL Frameset
+4
+3
+2
+1
£2,999.00 GBP
£2,999.00 GBP
Our focus is custom-building bikes to order, with lead times of 3-4 weeks.  The Wilier Filante SL, a racing road bike that embodies the spirit of its high-end counterpart, the Filante SLR. Designed...
LOOK 785 road bike frame, black with Red, yellow, white and blue detailing following a broken line pattern. White LOOK logo. LOOK 785 bike frame with red, yellow, white and blue detailing following a broken line pattern. Large black LOOK logo.
+2
+1
£2,400.00 GBP
£2,400.00 GBP
Grab it while you can—one Medium Pro Team Black is in stock now at Mapdec! Our focus is custom-building bikes to order, with lead times of 12 days. However, if a frame is shown in stock, we can sh...
Wilier Garda Frameset Wilier Garda Frameset
+3
+2
+1
£1,599.00 GBP
£1,599.00 GBP
Garda is the perfect product for those who want a modern bike with a stress-free ride. With Garda, Wilier redesigned the entry-level carbon race bike giving it a modern interpretation, with cables ...
Wilier Granturismo SL Frameset Wilier Granturismo SL Frameset
+2
+1
£2,699.00 GBP
£2,699.00 GBP
Our focus is custom-building bikes to order, with lead times of 3-4 weeks.  Experience the ultimate blend of comfort and performance with the Wilier Granturismo SL. Designed for long-distance rides...
FiftyOne Sika Frameset FiftyOne Sika Frameset
+2
+1
£3,899.00 GBP
£3,899.00 GBP
This frame takes 10 days to arrive at Mapdec. The Sika is a cutting-edge road bike that delivers top-level performance in a package tailored for real riders, not for pros. It combines feathery...
FiftyOne Assassin FiftyOne Assassin
+6
+5
+4
+3
+2
+1
£2,590.50 GBP
£2,590.50 GBP
The Assassin is a progressive gravel bike with a massive breadth of ability. Its adjustable geometry creates capability in place of compromise, allowing you to tailor the handling to how you ride. ...
36% Off
TIME Alpe d'Huez X TIME Alpe d'Huez X
+5
+4
+3
+2
+1
£2,099.00 GBP
£2,099.00 GBP
£3,299.00 GBP
This frame takes 10 days to arrive at Mapdec.  Engineered for wider road tyres, this all-road endurance bike delivers a smooth ride over rough asphalt with quick, responsive acceleration for challe...
LOOK G85 Cezal LOOK G85 Cezal
£2,300.00 GBP
£2,300.00 GBP
The 2026 all new G85 Cezal is a fast and versatile carbon gravel bike. Its geometry delivers control, comfort and precision on all terrains. Compatible with tires up to 50 mm, it will accompany you...
3T Ultra² Italia 3T Ultra² Italia
+4
+3
+2
+1
from £3,538.50 GBP
from £3,538.50 GBP
The 2026 3T Ultra² Italia represents the next evolution of performance gravel engineering—crafted for extended adventures, multi-day bikepacking, and fully self-sufficient riding.  Key features inc...
TIME NXR TIME NXR
+4
+3
+2
+1
£2,639.00 GBP
£2,639.00 GBP
The 2026 TIME NXR frameset is a modern pure-road platform evolved from the proven Alpe d’Huez, delivering balanced road geometry with tyre clearance up to 32mm, fully integrated cable routing, SRAM...
3T Extrema Italia 3T Extrema Italia
+3
+2
+1
£5,310.00 GBP
£5,310.00 GBP
Built for the most demanding gravel adventures and race-day performance, the Extrema Italia combines cutting-edge aerodynamics with uncompromising versatility. With clearance for tyres up to 57mm a...
3T RaceMax (WPNT) 3T RaceMax (WPNT)
+4
+3
+2
+1
£2,714.00 GBP
£2,714.00 GBP
Built for gravel riders who demand pure speed on every surface, the RaceMax WPNT blends race-proven aerodynamics with real-world gravel capability. Optimised for 35–45mm tyres, with clearance for u...
3T RaceMax² (Italia) 3T RaceMax² (Italia)
+5
+4
+3
+2
+1
£5,310.00 GBP
£5,310.00 GBP
Evolving beyond the Racemax (WPNT), the RaceMax² Italia is an all-new gravel platform engineered for greater speed, wider tyres and even sharper race performance. Designed around 41–51mm tyres, it ...
LOOK 795 Blade RS 3 LOOK 795 Blade RS 3
+4
+3
+2
+1
£4,750.00 GBP
£4,750.00 GBP
Designed alongside the COFIDIS WorldTour team, the LOOK 795 Blade RS Frameset is the pinnacle of French engineering. The 795 Blade RS 3 isn't simply an aero bike. Its carefully balanced geometry cr...
18% Off
LOOK Blade RS 2 LOOK Blade RS 2
+5
+4
+3
+2
+1
from £3,790.00 GBP
from £3,790.00 GBP
£4,600.00 GBP
Built for racers and performance-focused riders, the LOOK 795 Blade RS 2 frameset is designed to deliver maximum speed, efficiency and handling. Weighing just 890g for the frame (Size S) and 1,315g...
Explore Mapdec

Our Services

Workshop Services

We fix what other shops can't.

Suspension Services

In house suspension room.
Demo & Rental Fleet

Luxury Road & Gravel Bikes