MARIN RIFT ZONE JR 24 KID'S FS MTB BIKE 2025 BLACK/BLUE

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Product Details - Marin Rift Zone Jr 24 Kid's Fs Mtb Bike 2025 Black/blue

The Marin Rift Zone Jr is made to party, just like the full-sized Rifty. It has 24" wheels that are a little smaller than our full-sized bikes, making it the perfect gateway ride for tweeny riders.

And just like the 'grown up' Rift Zone, it has 130mm rear travel, a lightweight aluminum frame and our super-plush MultiTrac suspension platform for endless good times on the trails.

And best of all, the Rift Zone Jr can grow with your child. Got another little shredder on the way? The Rift Zone Jr shares the same frame, fork and shock as the Rift Zone 26". Simply swap the wheels to 26" and longer cranks as your child outgrows the Jr.

Key Features 

  • 24" Wheels, upgradable to 26": The Rift Zone Jr can fit 26” wheels down the road, extending its life and versatility
  • X-Fusion Air Suspension: Easily adjustable air suspension is tunable for a growing kid.
  • Powerful Disc brakes: For minimal maintenance and all-conditions stopping power.

Full Specification

  • Frame: Series 3 6061 Aluminium Frame, 24" Wheel with Clearance for 26", 120mm Travel, MultiTrac Suspension Platform, 135mm Open Dropout (Upgradeable to 142x12mm Thru-Axle), 73mm Threaded BB
  • Rear Shock: X-Fusion O2 Pro R, 190x51mm, Custom Tune, M8x22.2mm Hardware
  • Fork: X-Fusion Velvet RLC 26", 120mm Travel, Compression and Rebound Adjustment, 100x15mm Thru-Axle
  • Gear Shifters: MicroShift, SLM895, 11-Speed
  • Chainset: Marin Forged Alloy 1x11, Hollow Spindle, Steel Narrow Wide 32T Chainring, Direct Mount Type
  • Rear Cassette: SunRace 11-Speed, 11-46T
  • Chain: KMC X11
  • Front Derailleur: N/A
  • Rear Derailleur: Shimano Deore, 11 Speed, SGS
  • Bottom Bracket: External Sealed Cartridge Bearings
  • Pedals: Nylon Platform
  • Rims: Marin, Double Wall Alloy, 27mm Inner, Pinned Joint, Disc Specific, Tubeless Compatible
  • Front Hub: Forged Alloy, 100x15mm, 32H
  • Rear Hub: Forged Alloy, 135mm, Quad Sealed Bearings, 32H
  • Tyres: Vee Tire Co, Flow Snap 24”x2.4", Tackee Compound, Wire Bead
  • Brakes: Shimano MT-201 Hydraulic Disc, Front: 180mm Rotor, Rear: 160mm Rotor
  • Handlebar Grips: Marin Dual Density
  • Handlebar: Marin Mini-Riser, 6061 Double Butted Aluminium, 15mm Rise, 720mm Width, 4º Up, 9º Back
  • Headset: FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
  • Stem: Marin 3D Forged Alloy, 35mm
  • Saddle: Marin Speed Concept
  • Seatpost: Marin Alloy, 30.9
  • Accessories: N/A
  • Weight: N/A

Size Guide for Marin Rift Zone JR

Wheel Size Rider Height
24" ONE SIZE 122.5cm to 142.5cm
Allows 26" wheels & 120mm cranks 142.5cm to 157cm

 

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

Marin Bike Sizing Guide Size Guide

How we Build & Pack Your Bike

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.

Pedals - Ensure pedals are still tight and correctly fitted.

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.

Pedals - Ensure pedals are still tight and correctly fitted.

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.

Pedals - Ensure pedals are still tight and correctly fitted.

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.

Pedals - Ensure pedals are still tight and correctly fitted.

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!

Read our full advice

If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk

MARIN RIFT ZONE JR 24 KID'S FS MTB BIKE 2025 BLACK/BLUE
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More information

  • SKU: 735946001
  • EPOS Code:
Est. Dispatch
Delivery Available
Finance Available
Family Owned Independent
Built by Cytech Mechanics
10% Off Accessories
We Accept Cyclescheme
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Product Description

The Marin Rift Zone Jr is made to party, just like the full-sized Rifty. It has 24" wheels that are a little smaller than our full-sized bikes, making it the perfect gateway ride for tweeny riders.

And just like the 'grown up' Rift Zone, it has 130mm rear travel, a lightweight aluminum frame and our super-plush MultiTrac suspension platform for endless good times on the trails.

And best of all, the Rift Zone Jr can grow with your child. Got another little shredder on the way? The Rift Zone Jr shares the same frame, fork and shock as the Rift Zone 26". Simply swap the wheels to 26" and longer cranks as your child outgrows the Jr.

Key Features 

  • 24" Wheels, upgradable to 26": The Rift Zone Jr can fit 26” wheels down the road, extending its life and versatility
  • X-Fusion Air Suspension: Easily adjustable air suspension is tunable for a growing kid.
  • Powerful Disc brakes: For minimal maintenance and all-conditions stopping power.

Full Specification

  • Frame: Series 3 6061 Aluminium Frame, 24" Wheel with Clearance for 26", 120mm Travel, MultiTrac Suspension Platform, 135mm Open Dropout (Upgradeable to 142x12mm Thru-Axle), 73mm Threaded BB
  • Rear Shock: X-Fusion O2 Pro R, 190x51mm, Custom Tune, M8x22.2mm Hardware
  • Fork: X-Fusion Velvet RLC 26", 120mm Travel, Compression and Rebound Adjustment, 100x15mm Thru-Axle
  • Gear Shifters: MicroShift, SLM895, 11-Speed
  • Chainset: Marin Forged Alloy 1x11, Hollow Spindle, Steel Narrow Wide 32T Chainring, Direct Mount Type
  • Rear Cassette: SunRace 11-Speed, 11-46T
  • Chain: KMC X11
  • Front Derailleur: N/A
  • Rear Derailleur: Shimano Deore, 11 Speed, SGS
  • Bottom Bracket: External Sealed Cartridge Bearings
  • Pedals: Nylon Platform
  • Rims: Marin, Double Wall Alloy, 27mm Inner, Pinned Joint, Disc Specific, Tubeless Compatible
  • Front Hub: Forged Alloy, 100x15mm, 32H
  • Rear Hub: Forged Alloy, 135mm, Quad Sealed Bearings, 32H
  • Tyres: Vee Tire Co, Flow Snap 24”x2.4", Tackee Compound, Wire Bead
  • Brakes: Shimano MT-201 Hydraulic Disc, Front: 180mm Rotor, Rear: 160mm Rotor
  • Handlebar Grips: Marin Dual Density
  • Handlebar: Marin Mini-Riser, 6061 Double Butted Aluminium, 15mm Rise, 720mm Width, 4º Up, 9º Back
  • Headset: FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
  • Stem: Marin 3D Forged Alloy, 35mm
  • Saddle: Marin Speed Concept
  • Seatpost: Marin Alloy, 30.9
  • Accessories: N/A
  • Weight: N/A

Size Guide for Marin Rift Zone JR

Wheel Size Rider Height
24" ONE SIZE 122.5cm to 142.5cm
Allows 26" wheels & 120mm cranks 142.5cm to 157cm

 

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

Marin Bike Sizing Guide Size Guide

How to Build Your Bike

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.

Pedals - Ensure pedals are still tight and correctly fitted.

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.

Pedals - Ensure pedals are still tight and correctly fitted.

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.

Pedals - Ensure pedals are still tight and correctly fitted.

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.

Pedals - Ensure pedals are still tight and correctly fitted.

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!

Read our full advice

If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk