TREK MARLIN 5 GEN 3 MTB BIKE 2025 POWER SURGE
Product Details - Trek Marlin 5 Gen 3 Mtb Bike 2025 Power Surge
Product Details - Trek Marlin 5 Gen 3 Mtb Bike 2025 Power Surge
The Marlin 5 is a great ride for all your adventures.
It's also versatile and a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorise and haul a load.
Key Features Trek Marlin 5 Gen 3 MTB Bike 2025
- SR Suntour suspension fork: For comfort and control.
- Hydraulic disc brakes: For reliable stopping in all conditions.
- Shimano CUES 9 speed gears: Wide range gearing, with the simplicity of a single shifter.
Please Note: Marlin models in XXS and XS frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount.
Full Specification
- Frame: Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
- Fork: SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 100 mm QR, 100 mm travel
- Shifters: Shimano U4000, 9-speed
- Crankset: Prowheel C10Y-NW, 30T steel narrow-wide ring, 160 - 170 mm length
- Cassette: Shimano LINKGLIDE LG300, 11-46, 9-speed
- Chain: Shimano LG500
- Front Derailleur: N/A
- Rear Derailleur: Shimano CUES U4000
- Pedals: VP-536 nylon platform
- Rims: Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
- Front Hub: Formula DC-20, alloy, 6-bolt, 5x100 mm QR
- Rear Hub: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
- Tyres: Bontrager XT3 Comp, wire bead, 30 tpi, XXS: 26 x 2.35" XS,S: 27.5 x 2.40" M, ML, L, XL, XXL: 29 x 2.40"
- Brakes: Tektro HD-M275 hydraulic disc (short reach levers on XXS, XS and S sizes)
- Handlebars: Bontrager alloy, 31.8 mm, 5 - 15 mm rise, 690 - 750 mm width
- Handlebar Grips: Bontrager XR Trail Comp, nylon lock-on
- Headset: Semi-integrated, 1-1/8"
- Stem: Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 35 - 70 mm length
- Saddle: Bontrager Arvada, steel rails, 138 mm width
- Seatpost: Bontrager alloy, 31.6 mm, 12 mm offset, 300 - 400mm length
- Accessories: N/A
- Weight: M- 15.10 kg / 33.29 lbs (with tubes)
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
Size Guide
Size Guide

How we Build & Pack Your Bike
How we Build & Pack Your Bike
Aftercare
Aftercare
At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.
Bicycle Safety
Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.
Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.
Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.
Follow road rules – Ride responsibly and remain aware of your surroundings.
Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)
Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.
Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.
Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.
Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.
Routine Maintenance (Every Few Weeks)
Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.
Brake Safety – Check brake pads and responsiveness before each ride.
Tyre Inspection – Look for punctures and ensure correct air pressure.
Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.
Frame Safety Check – Look for any signs of damage or cracks.
Professional Check-Ups
Have your bike serviced at least once a year, or more frequently if you ride often.
Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)
Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.
Avoid Overcharging – Unplug the charger once fully charged to extend battery life.
Routine e-Bike Maintenance (Every Few Weeks)
Motor Inspection – Listen for unusual noises and ensure smooth operation.
Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.
Seasonal e-Bike Maintenance
Check Electrical Components – Ensure wires and connections are clean and secure.
Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.
By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!
If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk
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- SKU: 5292524
- EPOS Code:






Product Description
Product Description
The Marlin 5 is a great ride for all your adventures.
It's also versatile and a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorise and haul a load.
Key Features Trek Marlin 5 Gen 3 MTB Bike 2025
- SR Suntour suspension fork: For comfort and control.
- Hydraulic disc brakes: For reliable stopping in all conditions.
- Shimano CUES 9 speed gears: Wide range gearing, with the simplicity of a single shifter.
Please Note: Marlin models in XXS and XS frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount.
Full Specification
- Frame: Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
- Fork: SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 100 mm QR, 100 mm travel
- Shifters: Shimano U4000, 9-speed
- Crankset: Prowheel C10Y-NW, 30T steel narrow-wide ring, 160 - 170 mm length
- Cassette: Shimano LINKGLIDE LG300, 11-46, 9-speed
- Chain: Shimano LG500
- Front Derailleur: N/A
- Rear Derailleur: Shimano CUES U4000
- Pedals: VP-536 nylon platform
- Rims: Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
- Front Hub: Formula DC-20, alloy, 6-bolt, 5x100 mm QR
- Rear Hub: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
- Tyres: Bontrager XT3 Comp, wire bead, 30 tpi, XXS: 26 x 2.35" XS,S: 27.5 x 2.40" M, ML, L, XL, XXL: 29 x 2.40"
- Brakes: Tektro HD-M275 hydraulic disc (short reach levers on XXS, XS and S sizes)
- Handlebars: Bontrager alloy, 31.8 mm, 5 - 15 mm rise, 690 - 750 mm width
- Handlebar Grips: Bontrager XR Trail Comp, nylon lock-on
- Headset: Semi-integrated, 1-1/8"
- Stem: Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 35 - 70 mm length
- Saddle: Bontrager Arvada, steel rails, 138 mm width
- Seatpost: Bontrager alloy, 31.6 mm, 12 mm offset, 300 - 400mm length
- Accessories: N/A
- Weight: M- 15.10 kg / 33.29 lbs (with tubes)
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
Size Guide
Size Guide

How to Build Your Bike
How to Build Your Bike
Aftercare
Aftercare
At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.
Bicycle Safety
Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.
Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.
Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.
Follow road rules – Ride responsibly and remain aware of your surroundings.
Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)
Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.
Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.
Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.
Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.
Routine Maintenance (Every Few Weeks)
Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.
Brake Safety – Check brake pads and responsiveness before each ride.
Tyre Inspection – Look for punctures and ensure correct air pressure.
Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.
Frame Safety Check – Look for any signs of damage or cracks.
Professional Check-Ups
Have your bike serviced at least once a year, or more frequently if you ride often.
Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)
Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.
Avoid Overcharging – Unplug the charger once fully charged to extend battery life.
Routine e-Bike Maintenance (Every Few Weeks)
Motor Inspection – Listen for unusual noises and ensure smooth operation.
Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.
Seasonal e-Bike Maintenance
Check Electrical Components – Ensure wires and connections are clean and secure.
Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.
By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!
If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk
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