2025 Marin Cost Trail 20 Inch Wheel 7 Speed Bike
Finance available with Novuna Personal Finance
737548001
843346127419
The 2025 Marin Cost Trail 20 Inch Wheel 7 Speed Bike 20 Inch Wheel SILVER/BLACK 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 Marin Coast Trail 20 Inch Wheel 7 Speed Kids Bike is ideal for use on bike paths, roads and in the park. This bike is ideal for kids from 3' 5" to 4' 7" tall.
Marin Coast Trail bikes are all built around a lightweight Series 1 aluminium frame and aluminium forks. This ensures that your young rider won't be held back by a heavy bike, as a lighter bike is easier to control and balance. The weight savings goes beyond the frame. Every component spec'd offers the best balance of weight to durability. Kids are smaller all over, so Marin's designers took that into consideration. Handlebars and grips are of smaller diameter than found on adult bikes, brake levers are specifically designed for smaller hands, and even the pedals and saddles are proportionally smaller. This helps kids maintain comfort and control while they are still developing their skills as riders.
This bike is perfect for
Kids from 3' 5" to 4' 7" tall who will be spending most of their time riding on hard surfaces such as roads and cycle paths. The 7 speed gearing is great for kids in hillier areas, or doing longer rides.
Key Features
- Lightweight Series 1 aluminium frame
- 7 speed gearing to help kids ride further
- Simple rim brakes with levers sizes for smaller hands
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" |
Why Choose Local Hand Delivery?
Skip the hassle of a standard courier and enjoy a premium service delivered directly by our own expert staff.
- Ready to Ride: Unlike some couriers who leave you with a "bike-in-a-box," our bikes arrive fully built and safety-checked. No tools or mechanical skills are required—just hop on and go.
- Zero Packaging: We don’t believe in making you deal with mountain of cardboard and plastic. Because we use our own vans, the bike arrives exactly as it looks in the showroom.
- Expert Knowledge: Your bike is delivered by our own team. They can answer your questions, help with seat height adjustments, and give you a quick "walk-around" of your new ride’s features.
- Ultimate Flexibility: Standard couriers often give you a rigid window. Because we manage our own routes, we can be much more flexible, working around your school runs, work shifts, or days off to find a time that actually suits you.
- Browse in-store, Buy at Home: You can visit any of our stores to see a bike in the flesh, then head home and have that exact bike delivered to your doorstep.
Is Your Postcode on the List?
Local hand delivery is FREE on all bikes over £1500 and just £25 for bikes under £1500. We now cover a massive range of postcodes across the region:
Covered Postcode Areas: AL, BR, CB, CM, CO, CR, CT, DA, E, EC, EN, GU, HA, HP, IG, IP, KT, LU, ME, MK, N, NR, NW, RG, RH, RM, SE, SG, SL, SM, SS, SW, TN, TW, UB, W, WC, WD.
Outside our local delivery area?
If you don't live in our local hand delivery area we can still do a fully built and ready to ride hand delivery to most of England and Wales through our specialist bike logistics partners. As with our local delivery service the bike will come fully built with no packaging. This service is £50 to £75 for bikes under £1500 and free on bikes over £1500 depending on your area.
Frame - Series 1 Lightweight Aluminium, Low Standover, 20” Wheels, Replaceable Derailleur Hanger, Rim Brake
Fork - Series 1 Aluminium , Rim brake
Rim - Aluminium, CNC Brake Surface
Hub Rear - Forged Aluminium Alloy, 28H
Hub Front - Forged Aluminium Alloy, 28H
Spokes - 14g Stainless Steel
Tyres - Marin X Vee Tire Co. Speedster, 20x2.0”
Derailleur Rear - Shimano Tourney, 7-Speed
Shift Lever - Microshift TS39 Short-Reach 7-Speed
Crankset - Forged Alloy, 34T, 140mm, Ring Guard
Bottom Bracket - Sealed Cartridge Bearings, Square Taper
Chain - KMC 7-Speed
Cassette - SunRace, 7-Speed, 11-34T
Brakes Front - Linear Pull, Alloy
Brakes Rear - Linear Pull, Alloy
Brake Levers - Kid's Specific Short Reach Alloy Lever
Handlebar - Marin Riser, 50mm Rise, 580mm Width, 19mm OD Grip Section
Stem - Alloy, 40mm
Grips - Single Density, Thin Diameter Grip
Headset - Threadless
Seatpost - Aluminium, 27.2mm, Integrated Saddle/Post
Saddle - Marin 20" Integrated Saddle/Post
Pedals - Kids Specific Nylon Pedal
| Colours | SILVER/BLACK, TEAL/SILVER |
| Sizes | 20 Inch Wheel |
| Brand | MARIN |
| Model Year | 2025 |
| Barcodes | 843346127419, 843346127426 |
| SKUs / Part Numbers | 737548001, 737549001 |
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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£349.99
£335.99 Was £399.99
16% Off
with a £ 0.00 deposit.
The total charge for credit is £ 0.00.
Choose an available finance option:
To apply, add the item to your basket and apply for finance on your entire basket.
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.
This is for estimation purposes only. Actual Finance Application is Completed During Checkout.