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    Flat Harry's Cyclery
    31 High Street, Cookham, Maidenhead, SL6 9SJ. View the map
  • Who are we?

    A bit about us

    Flat Harry's mission is to be the best local bike shop in the Thames Valley area, our customer base is broad, attracting cyclists from all the towns and villages around Cookham; in a radius around us that passes through Lane End, High Wycombe and Beaconsfield, onto the Chalfonts, Gerrards Cross, Uxbridge, Windsor and Eton, through Taplow, Maidenhead, Bray and Holyport, and over to Marlow and Henley, our customers are happy to travel to find us, knowing we cater for every and any cyclist. We're mad about cycling and love it when anyone shares our enthusiasm, be they an aspiring fan of the sport, a tech hungry hard rider spinning their best speed machine, a thrill hungry mud lover, a hardened commuter battling the traffic, or a leisurely rider on a modest budget looking to have fun and relax on their bike.

    Whether it's serving coffee and flapjack on the mid-ride break, fixing your tusty steed, performing a bike-fitting or providing you with the right gear for your ride, we do it all and a lot more at Flat Harry's. We are proudly independent and thus only stock parts and brands that we are passionately proud of, and believe are the most suited for cyclists coping with the flint strewn roads and trails in our area.

    Our obsessive temperament, collective knowledge, engineering expertise, focus on quality and debunking of fads are what distinguish our shop, and make our customers return time and time again. Building trusting long term relationships with our customers is really important to us. Simply put, we want to be the place you trust above all others to do the right thing for you. Some folk might try and take advantage of our good nature, but we believe what goes around comes around and we want you to value our approach.

    Read more about us...
  • Key Information!

  • 2018 Whyte 909 Granite

    The king of Whyte's rowdy 900 hardtail series, the 909 is fully equipped for combative trail thrashing, with its aggressive geometry, super grippy fat Maxxis tyres, wide ratio SRAM GX Eagle groupset and highly capable Fox fork.


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    2018 Whyte 909 Granite Video


    With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

    You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


    With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

    So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

    Estimated Delivery Dates

    Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

    The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.

    The Current Estimated Delivery Dates for 2018 Whyte 909 Granite is

    2018 Whyte 909 Granite Description

  • Brand : Whyte
  • Season : 2018
  • Code : W18909
  • Weight : 0KG
  • Whyte's 900 series comprises 3 of the best trail hardtails going. Made from 6061 hydro formed T6 aluminium, the 900 series frame benefits both from Whyte's mountain bike frame geometry and being a dedicated to the single chainring (SCR) concept. The 900 series geometry positions the front wheel further out in front of the rider at a super-slack 65 degree head angle, creating a confidence inspiring front end, that absorbs impacts better and is more prone to self-correcting, conserving your speed and momentum brilliantly. The whole frame is designed with a lower centre of gravity to enhance stability and carving corners at speed. To retain precise and direct handling, the 900 series is equipped with short stems and wide handlebars, so you can utilise the speed granted by the front end, with super-close control. The rear wheel is tucked right in on the 900 series, keeping them playful and responsive, the final piece of the puzzle in creating a simultaneously stable and responsive bike.

    This trail-shredding geometry also benefits from being built for SCR groupsets. Removing the front dérailleur and extra chainrings brings a range of benefits for mountain bike geometry. It means that the chainstays can be symmetrical and therefore stronger and lighter, than the weaker and heavier chainstays required to accommodate front mechs. Weight distribution benefits greatly as there is considerably less weight on the right hand side of the bike, the front mech, extra chainrings and cables all done away with. An SCR drivetrain also allows for an increase in rear pivot span, which boosts stiffness and therefore handling and power transfer between rider and frame. Overall this makes the bike lighter, making it handle and accelerate better, whilst making it more robust with less complex components to be damaged.

    The stunning 909 is Whyte's top 27.5inch hardtail. Building on the excellent blueprint of the 900 series frame, the 909 is equipped with some top tier components, including SRAM's 12 speed GX eagle groupset including Guide R hydraulic disc brakes and Fox's highly rated Float Performance 130mm fork. The 909 has the biggest gear range a 900 series Whyte has ever had, with a 34 tooth chainring turning a massive 10-50 12 speed cassette, meaning you're officially out of excuses if you can't get up a climb on this beast. SRAM's guide R hydraulic disc brakes have excellent feel and modulation for controlling your pace on tricky trails and powerful stopping performance if required. Fox's Float Performance provides tonnes of feedback and support with it's Grip 3 position damper giving you a choice of different dampening for different surfaces, making the 909 an incredibly versatile off-roader. For optimal grip and the option to run extremely low pressures the 909 comes with tubeless ready 35mm wide WTB rims and 27.5x2.8 inch top quality Maxxis tyres. The width added for 2018 bolsters the 909's ability to put it about on even more technical trails than before, making for a properly adventurous hooligans hardtail. The 909 is fitted with Whyte's own dropper post, making sure it has the full suite of necessary components to run the gauntlet of the vast majority of trails out there, whether up, down or rough as a very rough thing, the 909 will triumph over it.

    No matter how much fun a bike provides, its naff if they break all the time. Not just providing top quality performance, Whyte's practical ingenuity is plain to see with the 909's weather-proofing measures. Their BBX internal cable routing for protection from the elements and easy maintenance, keeping the dropper post in fine working order too. Whyte's use their own alloy double sealed cartridge bearing hubs for the 909's front wheel, turning to Hope's highly regarded Pro 4 hub for the rear wheel. Both hubs offer great protection from grit and water ingress, whilst the rear wheel, which takes the majority of big hits and power transfer, will really benefit from the upgraded Hope hub. Reliably rough route ready the 909 is a perfect trail bike for British conditions. The king of Whyte's rowdy 900 hardtail series, the 909 is fully equipped for combative trail thrashing, with its aggressive geometry, super grippy fat Maxxis tyres, wide ratio SRAM GX Eagle groupset and highly capable Fox fork.

    Buyers Guide

    Sizing Information

    Technical Information


    Matt Granite with Grey/Bronze


    6061 Hydro Formed T6 Aluminium, Custom Drawn and Multi Butted, Tapered Headtube, Intergrip Seat Clamp System with Internal BBX Cable Routing for Dropper Post and 12mm X 148mm Boost Dropouts


    Fox Float Performance 34, 27.5", 130mm Travel with GRIP 3-Pos Damper, Tapered Steerer, Black Coating and 110mm X 15mm Boost, E-Thru Axle

    Rear Shock



    FSA No. 57E Orbit ZS, Sealed Cartridge Bearings, 1.5" Lower, 1 1.8" Upper Bearings

    Rear Hub

    Hope PRO4 with Stainless Steel Bearings, 12mm X 148mm Boost Through Axle, XD Driver, 32 Hole

    Front Hub

    Alloy, Double Sealed Cartridge Bearing Hub, 15mm X 110mm Boost Through Axle, 32 Hole


    WTB 2.0mm, Black Sandvik Stainless with Brass Nipples


    WTB STs i35 Rims with TCS System, Sleeve Joint, Tubeless Ready


    Maxxis High Roller II TR, 27.5" X 2.8" 120TPI 3C(Maxx Terra) Folding Bead, EXO Sidewall Protection Front, Maxxis Rekon TR, 27.5" X 2.8" 60TPI Dual TLR, Folding Bead, EXO Sidewall Protection Rear

    Shift Levers

    SRAM GX Eagle, MMX Clamp, 12 Speed

    Front Mech


    Rear Mech

    SRAM GX Eagle, 12 Speed


    SRAM XG-1275 Eagle 10-50, 12 Speed


    SRAM GX Eagle, 12 Speed


    SRAM GX Eagle, X-SYNC 2 Direct Mount 34T, Boost 12 Speed

    Bottom Bracket

    SRAM GXP, 73mm


    Whyte drop.it Post with Paddle Remote, 30.9mm X 420mm, 150mm Travel


    Whyte Custom, Triple Panel Design


    Whyte Custom 6061 Alloy, Low Rise, 760mm Wide (30mm Rise, 780mm on XL)


    Whyte Gravity Stem, 40mm S/M, 50mm L/XL


    Whyte Lock-on V Grip

    Front Brakes

    SRAM Guide R, 4 Pots, 180mm Rotor (20mm on XL)

    Rear Brakes

    SRAM Guide R, 4 Pots, 160mm Rotor (180mm on XL), Internal Routing

    Brake Levers

    SRAM Guide R, MMX Matchmaker








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