Frog vs Hoy: The Ultimate Kids’ Bike Comparison for 2025
The HOY Pentland is a range of kids bikes with gears designed in Great Britain (named after the legendary Sir Chris Hoy). The idea behind the series is to offer young riders pro-level design features and real performance — not just toy-level bikes — so kids can ride confidently, comfortably, and safely, and the bike will last.
There are several sizes (wheel sizes) aimed at different age ranges: 20″, 24″, and 26″, etc.
Hoy 20″ Pentland (Kids Bikes for 6-8 year olds)
The Pentland 24″ (Kids Bikes for 8-10 year olds)
Hoy Pentland 26″ (Kids Bikes for 10-12 year olds)
The bikes are built with attention to component quality, frame strength, and geometry tailored for kids.
Key Features & What Makes It Stand Out
Here are the major features, and why they matter:
| Feature | Why It’s Important |
|---|---|
| Triple-butted 6061 T6 alloy frame & alloy fork | Reduces weight while still being durable. A lighter bike is much easier for kids to handle — less fatigue, more control. |
| Disc brakes (160mm mechanical discs) | Using disc brakes gives more reliable stopping, especially in wet weather or when on mixed terrain, which increases safety. |
| Child-specific geometry, adjustable controls | Handlebars, brake levers, and other controls are scaled/proportioned for younger riders to reach comfortably. Helps with confidence, safer handling, less strain. |
| Good drivetrain choices (Shimano 7 or 8 speed, 32T chainring, 11-32T cassette in many cases) | Gives children enough gearing range to tackle hills and flats without struggling. Also smoother shifting improves riding experience. |
| Light weight | Makes a big difference: easier to start, stop, lift, manoeuvre, less exhausting to ride. |
| Sizing guidance & growth-friendly features | Quick-release seat posts, adjustable levers, sizing recommendations (inside leg height, etc.) help ensure you pick the size that fits now but can adapt as the child grows. |
Sizes, Pricing & Who Each Version Is For
Here are some of the different versions, what they cost, and which age / size of child they suit:
| Model / Wheel Size | Approx Price* | Age / Height / Leg Size Estimates | Key Differences |
|---|---|---|---|
| Pentland 20″ | £449.99 | Aimed at kids aged between 6-8 years, with an inside leg ~53.5 cm, height about 113 cm (3′8″) upwards. | 7-speed Shimano drivetrain, 127mm crank arms, strong frame, 160mm mechanical disc brakes. Good step-up from simpler bikes. |
| Pentland 24″ | £469.99 | For somewhat older kids (approx age 8-10 years), who need larger wheel diameter for speed, road or mixed-terrain rides. Around inside leg ~57 cm, height ~127 cm. | Similar build quality, likely with disc brakes, up-scaled geometry. |
| Pentland 26″ | £499.99 | Kids aged 10-12+ years, larger stature; inside leg ~70 cm, height around 145 cm. | 8-speed drivetrain, more gearing range, probably more trail or urban road friendly; larger size means slightly more weight but still designed to be manageable. |
Things to Check / Consider
If you’re thinking of getting one, here are things to check or think about:
- Proper Fit: Make sure the size matches your child — inside leg measurement, height, etc. A bike too big or too small can make riding uncomfortable or unsafe.
- Weight: Even though these are lightweight for kids’ bikes, every kilogram still matters. Compare with similar models. If your child struggles lifting or manoeuvring it, that could affect enjoyment.
- Brake Type & Performance: Mechanical disc brakes are solid, but make sure the brake levers are reachable and the brakes are well aligned. In wet conditions, disc brakes perform much better than rim brakes.
- Component Quality & durability: Things like chain, cassette, tyres, and wheels should be good enough that you’re not frequently replacing parts. Pentland seems good in this respect.
- Growth & Adjustability: Seat posts with quick release, adjustable levers, possibly stem or handlebar adjustments — all help extend the life of the bike as your child grows.
- After-sales support & warranty: Make sure the shop/builder offers good support, spares, warranty. The 10-year warranty on frames and forks for some models is a plus.
Summary: Who Is the HOY Pentland Ideal For
In short, the HOY Pentland line is ideal if:
- Your child is ready for a geared bike (so they can tackle hills and longer rides)
- You want something that will last (good components, robust build, able to adjust as they grow)
- You value safety, especially reliable braking (disc brakes)
- You want something light enough so that their ride is enjoyable, not a struggle
It’s less ideal if you want something extremely basic or very cheap (if the budget is tight).
Here is a comparison against the Frog Bikes
Before comparing, here’s a quick recap of what Frog Bikes are known for:
- Lightweight aluminium frames (6061 T6) across the ranges, with care to component size (levers, cranks, seatposts) to fit children well.
- Good gearing: many Frog hybrid / geared models come with 8 speeds and decent ranges (11-32T) to help kids tackle hills and varied terrain.
- Age / size guidance: Frog uses inside-leg measurements, age, and wheel sizes to help choose a bike that really fits now, not just for growth. They often provide adjustability (seatpost, stem height) to help make the fit better.
- Warranty and build quality: long warranty on frame & fork, robust design, components meant to last and strong resale value.
- Care to match kid-friendly parts: small levers, short cranks, slim grips, lighter tyres, etc. This makes control easier for younger or smaller riders.
As examples:
- The Frog 53, a 20″ geared hybrid for 5-7 year olds, weighs about 8.15 kg including pedals.
- The Frog 61 (24″ wheels, for 8-10 yrs) ~9.05 kg with pedals.
HOY Pentland – What We Know & What It Offers
The Pentland line uses decent quality alloy frames (6061 T6 in many cases), with alloy forks, meaning similar base materials to Frog.
- They include disc brakes in many sizes, which gives stronger, more consistent braking especially in wet or mixed terrain. This is something not all Frog models have (many use rim brakes or V-brakes).
- Gearing tends to be 7- or 8-speed, offering good range.
- They focus on geometry and component sizes meant to suit kids, adjustable seat height etc, so fit is part of the design.
- They tend to be slightly more off-road capable (or mixed terrain) with more robust braking and probably more rugged specs in some models.
Head-to-Head: Pentland vs Frog Bikes
Here are some direct comparisons: advantages, trade-offs, and what to watch out for when choosing between them.
| Criteria | Where Frog Bikes Excel | Where Pentland Excels | Things to Watch / Trade‐Offs |
|---|---|---|---|
| Weight | Frog does well. Lightweight bikes help children ride, start, stop, manoeuvre. | Pentland is probably close, though with disc brakes and some more rugged hardware, some versions may weigh a bit more. If the model has disc brakes, that can add weight. | Heavier bikes are harder for kids. If Pentland’s weight tips over what the child can manage, that could reduce enjoyment and control. So size, weight, component choices matter. |
| Braking | Frog tends to use rim or linear pull brakes in many models. Good for many uses. | Pentland offers mechanical disc brakes in many sizes which give stronger stopping power, better in wet or muddy conditions. Good safety margin. | Disc brakes need occasional maintenance (alignment, cable or hose, pad replacement). Might cost more. Also, smaller kids’ hands may struggle with stiff disc lever pull (unless well adjusted). |
| Gearing & Terrain Capability | Frog’s 8-speed drivetrains with good cassette ranges (11-32T etc) permit a lot of usability from flat roads to gentle hills. Great for mixed riding. | Pentland appears to offer similar or slightly more robust gearing and is likely better suited where there are steeper hills or rougher terrain (due to better brakes + possibly tougher tyres or build). | More gears mean more complexity to maintain. Kids might not use all gears; could add cost. Also weight and how intuitive shifting is matter. |
| Fit, Adjustability and Kid-Friendly Components | Frog has excellent coverage here: size guidance (inseam), smaller levers, slim grips, child-friendly cranks, adjustability. Frog seems refined. | Pentland also emphasises fit and component sizing, and geometry built for kids. Should give similar benefits. | Sometimes Pentland’s more rugged specs may mean bulkier parts which could reduce finesse or make smaller sizes feel more “adult-like.” Need to test or compare in person. |
| Cost / Value | Frog tends to be premium priced but with good value for weight, durability, resale, warranty. The long warranty & strong components help justify the cost. | Pentland might offer more “bang for buck” if you want more robust brakes, tougher riding without stepping to adult specs. Could be better value where you really need disc brakes etc. | If you don’t need high-end braking or rough terrain, Frog may already meet your needs, and paying more for extra robustness might not be necessary. Also check ongoing maintenance costs. |
| Resale & Longevity | Frog has good resale value, good build quality, long warranties. Owners often report the bikes last well and are passed on. | Pentland may also hold value, especially given good specs, but brand perception and demand matter. If Pentland is less well known or fewer dealers, resale might be lower. | Consider community, brand, spares availability, warranty support. |
Which One Might Be Better for Your Child / Situation
Depending on your child’s riding needs, terrain, and what you value, one may be a better fit:
- If your child mostly rides on smoother roads, pavements, gentle hills, commuting to school, family rides: Frog might already tick all the boxes — lighter, good kids bike with gears, solid build, easier to manage.
- If the rides include mixed terrain (gravel paths, muddy trails, wet conditions), or steeper hills, or you want stronger braking performance and more ruggedness, Pentland might offer advantages.
- For younger kids, or those new to clips / gears / bikes: lighter bike + simpler components + easier reach on levers matters a lot. Frog seems very strong here.
- If maintenance, cost of spare parts or dealer support is a concern: check local support for both brands; Frog has a strong reputation and network, Pentland too but check specifics.
- Fit & comfort are paramount. No matter how good the specs, if the bike feels big or uncomfortable, the child may ride less. So test ride if possible. If not have a look at our frog sizing guide
