Rift Zone Jr
OverviewAbout the Marin Rift Zone Jr
The Marin Rift Zone Jr is a kids bike, built on an aluminium frame, listed at $2,499.99 at BikesOnline. A bike sized and geared for younger riders.
How it comparesThe Rift Zone Jr against similarly priced bikes
- At $2,499.99 it sits in the upper part of the range: 100% of the 55 kids bikes we list cost less.
- Lowest gear ratio: 0.64, lower (easier on steep climbs) than the middle of similarly priced kids bikes (0.79).
- Gears at the back: 11-speed, more than the middle of similarly priced kids bikes (9-speed).
- Stock tyre width: 61 mm, about the same as similarly priced kids bikes (middle 60 mm).
Closest alternatives on price
$300 less · 10-speed vs 11-speed · 120 mm fork vs 130 mm
$800 less · 8-speed vs 11-speed · 120 mm fork vs 130 mm
$900 less
$900 less
Compare the Rift Zone Jr with the two closest side by side
Compared with the 7 similar kids bikes on BikeFinder priced $1,250 to $4,000, using each bike's published specs and the price shown on its page.
SpecificationsWhat we know
- Brand
- Marin
- Category
- Kids
- Frame
- Aluminium
- Wheel size
- 24-inch or 26-inch
- Drivetrain
- Tektro Gemini 1x11
- Brakes
- Disc
- Frame sizes
- 24 inch, 26 inch
- Price
- $2,499.99 at BikesOnline, was $2,799.99. In stock, checked 3 Nov 2026.
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize 24 inch
- Stack
- 537.6 mm
- Reach
- 380 mm
- Stack/reach
- 1.41
- Head angle
- 65.5 deg
- Seat angle
- 76 deg
- Wheelbase
- 1089.3 mm
- Chainstay
- 425 mm
- BB drop
- 10 mm
- Standover
- 614 mm
- Fork rake
- 42 mm
GearingRatios
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
- Groupset
- Tektro Gemini
- Shifting
- Mechanical
- Drive
- 1x
- Speeds
- 11
- Crank
- Marin Forged Alloy, 152mm | 170mm Length, Boost Spacing
- Chainrings
- 32
- Cassette
- Tektro CS-M5100-11, 11-Speed, 11-50T
- Rear derailleur
- Tektro Gemini RD-5100-L, 11-Speed, Long Cage, With Clutch
- Brakes
- Tektro HD-M280 Hydraulic Disc
- Rotors
- 180mm
- Wheelset
- Marin, Double Wall Alloy, 27mm Inner, Pinned Joint, Disc Specific
- Rim internal width
- 27 mm
- Stock tyre
- 24x2.4 / 26x2.4
- Fork material
- X-Fusion Velvet RLC 26" suspension fork
- BB standard
- Threaded
- Seatpost
- X-fusion Manic Dropper Post, 100mm travel
- Cockpit
- Marin 3D Forged Alloy, 35mm / Marin Mini-Riser, 6061 Double Butted Aluminium, 12mm Rise, 720mm Width, 4 deg Up, 9 deg Back
- Saddle
- Marin Speed Concept
SuspensionMTB detail
- Front travel
- 130 mm
- Rear travel
- 130 mm
- Fork
- X-Fusion Velvet RLC 26"
- Shock
- X-Fusion O2 Pro R
- Suspension
- full suspension
Bike DNAWhat the numbers say
- Position
- Stack-to-reach 1.41 gives a long and low, racier riding position.
- Steering
- A 65.5 deg head angle points to stable, relaxed steering.
- Climbing
- Lowest ratio 0.64 is a very low climbing gear for steep or loaded climbs.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (BikesOnline product page (specification list and geometry table)), verified 2026-11-03. This is a specification analysis, not a physical ride review.
Where to buyStockist
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