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with hands much larger than the rider who even the 27.5” bike is aimed at, never mind the 24” and smaller models. The 19mm OD helps reduce the grip size which means small hands can reach the brakes more easily. The rest of the adjustment comes from the thickness of the actual grip, the smallest bikes use a slide-on grip that has less thickness than the larger bike grips.
Lower bottom brackets and shorter cranks are a major focus. Can you explain the mechanical and ergonomic advantage a child gets from a shorter crank, especially when they might be riding with a lower saddle height for stability? It’s exactly that, about that lower saddle stability and making it easier for a child to cope with that vertical crank 12/6 o’clock pedal position. Children want to ride with a saddle height set for stability when stationary, touching the ground with their feet to some extent. A lower saddle means the knee bend at the vertical crank position is more extreme and a shorter crank helps reduce that. It also gets the whole frame lower so the saddle to crank distance can be more optimum within that low saddle to floor distance. It makes a real difference, one you can see when they ride. Many children also struggle with turning a longer crank when starting off and pedalling movement influencing steering. All these issues are reduced by shorter cranks. But they just don’t have a problem spinning a slightly higher cadence.
34 | May 2026
The crank specs are based on proportions of leg lengths within the target age range for the wheel size and understanding how many adults could also be riding shorter cranks than they do. Across the range the leg length to crank length proportions are similar to me at 6ft tall riding a 165mm crank on my MTB, so they’re not unusually short, just a bit shorter than most brands use and matched to real ergonomic data for the riders.
The introduction of a 27.5” model is a significant addition. Did research lead you to realise this was something missing in the range? What was the main reason behind including it It simply replaces the 26” bike with a wheel size that has better tyre choice and availability in bike shops now. The increase from a 26” rim to a 27.5” rim isn’t significant to weight or fitting limitations but there are more wheel and tyre choices.
In recent news, you shared that you’re keeping a two-tier price point structure. How do you balance the premium feel while ensuring the MX remains an accessible entry point without compromising ride quality? We use the same frame, cranks and other key ergonomic components across both ranges so the fit fundamentals are the same. The Dimension bikes use higher grade Shimano
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