Transition Bikes Sizing Guide

Yes - we offer a dedicated size guide for all Transition bikes available at MTB Monster. Transition’s rider-focused geometry is designed to deliver balance, confidence, and control across a wide range of terrain.

Current models like the Transition BottleRocket, Patrol, Regulator, and Ripcord each feature geometry tuned to their purpose - from playful trail agility to aggressive downhill stability. Getting the right size ensures you get the most from your bike’s performance and comfort.

Choosing your frame size depends on your height and riding style. Riders who prefer a more responsive, nimble ride may lean toward a smaller size, while those seeking stability on faster, steeper terrain might opt for a larger frame.

For full Transition sizing charts and geometry details, check our Bike Size Guide or contact us

The correct bike size affects everything from comfort to performance. A well-sized bike improves balance, pedalling efficiency, and confidence on technical terrain, while reducing fatigue and strain on longer rides.

We provide comprehensive size guides for all the major brands we stock, ensuring you get the perfect fit across every category, from mechanical hardtail bikes, full suspension mountain bikes to eMTBs and gravel models.

• Cube
• Whyte
• Trek
• Transition
• Mondraker
• Marin
• Orbea
• Cannondale
• Santa Cruz
• Amflow

To view the full breakdown of sizes by brand, visit our Bike Size Guide or get in touch with our experts for personalised sizing advice.

You’ll just need a height measurement to find your ideal frame size from our size guides:

• Height: Stand straight against a wall and measure from floor to head.
You can also measure your inside leg measure to provide our team further understanding over your sizing requirements.
• Inside leg measurements stand straight with your back against a wall, barefoot or in socks. Place a book or ruler between where the trousers would sit inside your groin and have someone measure from the top of the book to the floor.

Once you’ve got your height measurement, use our Bike Size Guide to match to the correct frame size.

If your height puts you between two sizes, we recommend to consider your riding style:

• Choose smaller for agility, a lower standover height and a more playful ride feel.
• Choose larger for stability at speed, more reach, and better climbing efficiency.

Still unsure? Our experts can confirm the best fit for you - contact us for personalised sizing help.

Yes. Most modern bikes use unisex geometry, meaning sizing is based on body proportions rather than gender. For smaller riders, specific touchpoints (like shorter stems, narrow bars, or changing saddle position) can provide improved comfort.

Check our Bike Size Guide for full recommendations or ask our team for a personalised fit.

Children’s bikes are sized by wheel diameter (e.g. 20”, 24”, 26”), not frame size. Measure your child’s height and inseam to find the correct fit:

• 20” - ages 6–8 (115–130 cm)
• 24” - ages 8–10 (130–145 cm)
• 26”+ - ages 10+ or taller riders

We can help with recommendations on growth room and bike setup - get in touch for advice.