Developed from our extensive experience of elite racing.
The Luath Pro Series are focused, pure performance bikes. No corners have been cut with every detail refined and proven in the field.
'Cross optimised frame
The heart of the Luath Pro Series is the smooth welded, ultra-light 7005 series aluminium frame.
Following rigorous testing an elegant hydroformed top tube has been developed with superb strength and light weight properties. The hydroforming process allows us to integrate a specially flattened profile for comfortable shouldering. Narrow gauge, horizontally flattened seatstays result in a race-tuned rear triangle which allows for a little inbuilt ride compliance, helping the racer to keep the power down when the going gets rough.
Following extensive testing by our team riders we've decided to buck recent trends and routed the gear cable underneath the bottom bracket. This is the shortest possible path for the cable to the rear derailleur and ensures the lowest friction in the cable, resulting in the lightest possible shifting action for smaller hands. This also allows us to leave the top tube free of cable guides which significantly improves comfort when shouldering the bike. As part of our preparation outer cable sections are left as short as possible, further reducing resistance in the shift whilst allowing water and dirt to drain more easily and helping to maintain shifting performance in the filthiest conditions.
Light, responsive handling
Exclusive Islabikes full carbon cyclocross disc fork gives the lightest possible weight, premium ride comfort and confident, stable handling.
Full UD carbon construction of the fork legs, crown and steerer results in very light weights of approximately 396 grams (Luath 24) to 424 grams (Luath 700). Our monocoque design features flattened leg profiles for further weight saving and are subtly tapered in shape, adding a little ride compliance. Forward facing dropouts counteract the forces applied to the axle under braking and ensure the wheel stays securely in place. Internal routing keeps the brake hose neatly out of harm's way and we've even carefully shaped the tip to help locate the wheel for easy wheel fitting.
Thinking of the future and potential upgrade options we've specified the latest "flat mounts" disc mounting standards, so frame and fork are future and backwards compatible. Current hydraulic road levers are too large for comfortable use by smaller hands, but this may change in the future.
In spite of their exceptionally low weight the forks are built to be extremely durable and withstand rigorous testing.
Disc brakes are increasingly commonplace on 'cross bikes, offering consistent, reliable braking when racing conditions are at their worst.
Shimano mechanical STI levers currently offer the smallest hood profile, especially when compared to the current available hydraulic levers, so are our lever of choice for the Luath Pro Series. High specification Ultegra shifters feature lightweight carbon lever blades which we modify with extra-long adjuster screws and adjust for the shortest possible reach. Combined with narrow handlebar diameters and thin but comfortable Lizard Skins bar tape, brake reach and power for smaller hands is optimised as never before. Avid BB7 Road S disc brake calipers paired with 140mm rotors provide excellent stopping power and are lightweight and easy to maintain. Combined with the Shimano levers, they also provide good disc pad clearance which is particularly important in wet or muddy conditions.
Our Luath 24 and 26 also feature top mounted brake levers for additional braking confidence for the younger rider. Very light Tektro carbon fibre levers incur a minimal weight penalty and work extremely effectively with the Avid disc brakes.
Islabikes' custom designed drop handlebars are the result of years of development, feedback and careful observation of youth 'cross racing.
Developed specifically for smaller hands and arms, shaped and sized to improve grip, comfort and reach to the brake levers. These bars improve control and help to reduce fatigue, allowing the rider to focus fully on the course ahead.
Pro Series Luath 24 and 26 bars feature an extra narrow diameter and very short and shallow shape which brings the lever into the bar for easy reach without compromising set up. With a slightly wider diameter for slightly larger hands, the Luath 700 bars are perfectly configured, allowing the young racer to fully take advantage of all available hand positions with comfortable grip and reach to the brakes. Constructed from double butted aluminium tubing, all Luath bars are lightweight, robust and able to withstand the demands of competitive racing.
Finally, we wrap the bars with Lizard Skins DSP 1.8mm bar tape. This tape is durable, tacky and thin, offering excellent confidence in wet conditions and complementing the narrow bar diameter to provide very comfortable grip for smaller hands.
Proven shifting reliability in the toughest conditions
11 speed Shimano Ultegra derailleur and shifter, paired with a lightweight 11-36t sram cassette allows a wide gearing range and is a lightweight, reliable and easy to maintain setup when paired to a single chainring.
We've opted for a lightweight aluminium double chainguard with an aluminium single chainring. As used by a number of our team riders, this system of chain retention has proven 100% reliable in the worst imaginable conditions at countless 'cross races. It also means we can fit a lighter weight, lighter action, non-clutch equipped Shimano Ultegra rear derailleur.
Maximising rider input
Correct crank lengths are essential for pedalling efficiency and comfort.
More than just a shorter crank arm, Pro Series aluminium cranks are specifically sized for smaller riders and designed for very low Q factor and light weight.
Q factor is the distance between the cranks which dictates the spacing of the pedals. This is a particularly important consideration for smaller riders where, as a result of being shorter in the leg, the feet need to be closer together. The Luath cranks have a very low Q factor of 135mm, which combined with proportionally sized crank arms maximise comfort and ensure pedalling efficiency. This low Q factor also means we can reduce the bottom bracket height to improve standover whilst lending the bike a 'planted' feel when cornering.
The crank arms benefit from a tough, black anodised finish, whilst outer faces are polished, resisting scuffs and rub marks which help to ensure the cranks retain their good looks. The 104BCD chainring fitting ensures easy changing of the chainring for racers looking to fine-tune their gearing ratios.
Nothing contributes more to the ride feel of a bike more than the wheel set. Stan's No-Tubes Crest rims laced to Islabikes super lightweight aluminium disc hubs result in a very light, race ready wheelset.
Going tubeless offers lower weight and the ability to run lower pressures with reduced puncture risk for increased grip and ride comfort. This is particularly beneficial in 'cross where lower tyre pressures can make all the difference when wringing out the last inch of grip from your tyres when the course turns to slop. Stan's Crest rims are lightweight, durable and tubeless ready.
Premium Islabikes forged aluminium disc hubs feature cartridge bearings for smooth rolling, low maintenance reliability. Combined with stainless, narrow gauge, double butted spokes and aluminium nipples these form the basis of a strong, light wheel which are race ready.
Finally, not forgetting the little details, hollow axle cro-moly quick release skewers weigh a svelte 61 grams for the pair, saving critical weight for race day.
A race can be won in the corners
Designed by us to perfectly complement our Pro Series models, these exclusive tubeless ready tyres significantly enhance riding performance.
Drawing on our in-house expertise and extensive racing experience we started from the ground up, creating a tyre that's sized perfectly in proportion with each model of bike. Tread design has been optimised for cyclocross, offering aggressive cornering and braking grip in muddy conditions. A tubeless ready yet supple 185TPI casing gives smooth riding characteristics over rough ground which combined with kevlar beads and lightweight tanwalls help to keep the tyre weights competitively low, reducing critical rotating mass. This all means the bike accelerates more readily, effortlessly turning the rider's pedalling effort into rapid forward motion. A light wheel is also easier to stop, improving braking performance and confidence.
Durable yet light
Bottom brackets are often a "hidden nasty", even on high end bikes - not so with our Pro Series.
Here you'll find a hollow titanium axle with carbon fibre shell for very light weight and reliable, smooth pedalling. We use cartridge bottom brackets as they are available in a wide range of sizes, meaning that we can design around the perfect width axle when developing our exclusive low Q factor cranks.