2026 Marin San Quentin JR 20 Inch Wheel Kids Bike
Finance available with Novuna Personal Finance
YELLOW/ ORANGE
We expect to have more available from 29th December 2025.
740689001
843346134622
The 2026 Marin San Quentin JR 20 Inch Wheel Kids Bike YELLOW/ ORANGE is available at the following locations.
The item will be transferred to the location you choose during checkout.
If the item is not currently available to view at your desired location, please call your nearest store to arrange for it to be transferred.
The 2026 Marin San Quentin JR 20 Inch Wheel Kids Bike is for the kid looking to explore everything an offroad bike can do from singletrack to park rides to just cruising the neighbourhood in style.
The Marin San Quentin 20”, just like the big kid’s version, shreds the boundaries of the mountain bike genres. Designed with the input of freeride legend Matt Jones, the San Quentin takes the DNA of Marin's dirt-jumping Alcatraz and mutates it into a go-further and faster all-round, hardcore hardtail. The San Quentin 20” will feel just like a ‘grown up’ mountain bike to your little ripper, built with a stout Series 2 aluminium frame, 20” wheels, an SR Suntour XCM suspension fork, 8-speed Shimano drivetrain and kid’s specific hydraulic disc brakes.
Designed for kids from 3' 8" to 4' 4" tall.
This bike is perfect for
The San Quentin 24 and San Quentin 20 are for the riders growing up at the local bike park and cruising around the neighbourhood that want a kid-size bike with adult-size performance.
Key Features
- San Quentin 24” and 20” both feature a Series 2 aluminium frame
- Design inspired by Alcatraz dirt jump bikes
- A slack headtube angle paired with a steep seat tube angle creates a ride that will fly uphill, yet descend like it’s on rails
- Modern 1x drivetrains give the benefits of shifting simplicity and chain retention
Price Match at Cycles uk
We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.
What Size Kid's Bike
Kids’ bike sizes are a lot easier than adult bikes. With adult bikes, it is the frame that is measured and this can be done in inches, centimetres or simply small, medium and large, depending on the brand. With kids bikes, everyone measures them using the size of the wheel. So, when you see a kids bike referred to as a 12” or 20” it is the wheel size they are talking about.
Before you buy it's important to check the sizing for individual bikes as they can vary from brand to brand. Even some bikes from the same brand will have different size ranges. The table below is a general guide to get you started:
| Age | Height | Wheel |
|---|---|---|
| size 3 to 4 | under 100cm | 12" |
| 4 to 5 | 100cm to 120cm | 16" |
| 6 to 8 | 120cm to 135cm | 20" |
| 8 to 12 | 135cm to 145cm | 24" |
Frame - Series 2 6061 Aluminum, 20” Wheels, Disc Specific, 135mm Dropouts
Front Suspension - Manitou 20 Junit Sport Air BOOST, 80mm Travel, 110mm Axle Spacing
Rim - Marin, Double Wall Alloy, 25mm Internal
Hub Rear - Forged Aluminum, 32H, Disc Specific
Hub Front - Forged Aluminum, 32H, Disc Specific
Spokes - 14g Stainless Steel
Tyres - Vee Tire Crown Gem, 20x2.6”, Wire Bead
Derailleur Rear - MicroSHIFT Acolyte, 8-Speed, Super Short Cage, Clutch
Shift Lever - MicroSHIFT Acolyte, Short-Reach, 8-Speed
Crankset - Forged Alloy, Narrow Wide 30T, 140mm
Bottom Bracket - Sealed Cartridge Bearings, Square Taper
Chain - KMC Z8
Cassette - MicroSHIFT Acolyte, 8-Speed, 11-38T
Brakes Front - Tektro HD-J285 Kid's Specific Hydraulic Disc
Brakes Rear - Tektro HD-J285 Kid's Specific Hydraulic Disc
Brake Levers - Tektro Kid's Specific Short Reach Lever for Hydraulic Brake
Handlebar - Marin Riser, 31.8 clamp, 30mm Rise, 590mm Width
Stem - Marin Alloy, 35mm
Grips - Marin MTB
Headset - 1-1/8" x 1-1/8" FSA No 10P
Seatpost - Marin Alloy, 30.9mm
Saddle - Marin Kids MTB
Pedals - Kids Specific Nylon Pedal
| Colours | YELLOW/ ORANGE |
| Brand | MARIN |
| Barcodes | 843346134622 |
| SKUs / Part Numbers | 740689001 |
Please note: Manufacturers can sometimes change the specification of the products from time to time.
Why buy from Cycles UK?
We Deliver
You can choose how to receive your new bike. You can click and collect from our stores, pick a fast courier delivery or premium hand delivery. Whichever option you choose your bike will be fully assembled and checked by one of our experienced mechanics.
Price Promise
We regularly check our prices against our competitors to ensure that you are getting a good deal. If you find an item cheaper within seven days of purchase, just let us know and ask us to match the price.
Free Insurance
Our partners at Laka provides 30 days of free insurance on all new bikes sold to UK customers. As part of our service, your new bike is automatically covered with 30 days’ FREE insurance against theft and accidental damage.
Comfort Guarantee
Opinions of contact points such as saddles, shoes and grips can vary a lot between different riders. If you buy a contact point from Cycles UK and you don’t find it comfortable, you can return it within 30 days, and we’ll swap it for something else.
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£849.00
with a £ 0.00 deposit.
The total charge for credit is £ 0.00.
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Please note the above quotation is an indicative cost and actual monthly payments may vary by +/- 2p per month.
Credit subject to status and affordability. Terms & Conditions Apply. Cycles UK Ltd is a credit broker and is Authorised and Regulated by the Financial Conduct Authority. Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC, authorised and regulated by the Financial Conduct Authority. Financial Services Register no. 704348. The register can be accessed through http://www.fca.org.uk.
24 Month Representative Example:
Purchase Price (incl. VAT) £750
Deposit £75
Loan Amount £675
Interest/Total Charge for Credit £109.32
Total Amount Repayable £859.32
Balance Payable £784.32
By 24 Monthly Repayments of £32.68
15.9% APR Representative
Bank rate of interest 8.1% PA fixed
Please note the above quotation is an indicative cost and actual monthly payments may vary.
For Buy Now Pay Later and Deferred Interest Bearing Credit: Interest is charged from day 1 of your agreement, but not charged on any repayments made during the deferral period. On expiry of the deferral period, interest accrued during the deferral period will be applied to your repayments.
Consumer credit services are only available to over 18s and subject to status.
This is for estimation purposes only. Actual Finance Application is Completed During Checkout.