Seat clamp diameter: 33.1mm (included)Headset: 44mm, SHIS ZS44/28.6 upper, EC44/40 lower (not included)Front derailleur clamp diameter: 34.9 mm high direct-mount (adapter available separately)Bottom bracket shell: 73mm bottom bracket, ISO threadedFork : 4130 Chromoly tapered unicrown fork, ED coated. 15x110mm Boost thru axle (included)3 sets bottle cage mounts on all sizes pout set which makes the Big Bro compatible with the Rohloff 135mm Speedhub with OEM axle plate.\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.brothercycles.com\/shop\/accessories\/big-bro-rohloff-dropouts\/\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/www.brothercycles.com\/shop\/accessories\/big-bro-rohloff-dropouts\/\"\u003eSee here for details.\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLike all Brother products the Big Bro has been rigorously tested out in the real world – we took prototypes across the South Downs, through Snowdonia National Park and up to the Scottish Highlands. The Big Bro has since completed two of the worlds toughest bikepacking endurance races – the 4,418km Tour Divide from Canada to Mexico and the 1,710km\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.brothercycles.com\/2019\/09\/the-brotherhood-stefan-dave-from-pannier-cc-complete-the-silk-road-mou []Open navigation menu { "@context": "http://schema.org/", "@type": "Product", "name": "Brother Big Bro Frameset - COBALT BLUE", "url": "https:\/\/projektride.co.uk\/products\/brother-big-bro-frameset-cobalt-blue","image": [ "https:\/\/projektride.co.uk\/cdn\/shop\/files\/Screenshot2024-02-06at12.43.54_2144x.png?v=1707223670" ],"description": "\nProduct Details\n\nOur all purpose, tough as nails 29er\/27.5+ adventure frame; designed to take you well off the beaten track and beyond. Whether you’re running a lightweight bikepacking setup, front and rear panniers for a fully loaded ’round-the-world’ tour or just stripped back to thrash some forest trails the Big Bro can handle it.\nThe frame is made out of tough 4130 double butted cro-mo tubing and comes with a 100mm suspension corrected fork, both with corrosion resistant ED coating applied. The Big Bro now features Boost spacing which means there’s clearance for big 27.5 x 3″ tyres or 29 x 2.6″ tyres if you’d prefer to go with a 29er setup. It featur \/projektride.co.uk\/products\/brother-big-bro-frameset-cobalt-blue?variant=44794192330978" }, { "@type" : "Offer","availability" : "http://schema.org/InStock", "price" : 799.0, "priceCurrency" : "GBP", "url" : "https:\/\/projektride.co.uk\/products\/brother-big-bro-frameset-cobalt-blue?variant=44794192363746" }, { "@type" : "Offer","availability" : "http://schema.org/InStock", "price" : 799.0, "priceCurrency" : "GBP", "url" : "https:\/\/projektride.co.uk\/products\/brother-big-bro-frameset-cobalt-blue?variant=44794192396514" }, { "@type" : "Offer","availability" : "http://schema.org/InStock", "price" : 799.0, "priceCurrency" : "GBP", "url" : "https:\/\/projektride.co.uk\/products\/brother-big-bro-frameset-cobalt-blue?variant=44794192429282" } ] } . Homediv class="featured-image__bg bg-pos-center-center" style="background-image: url('//projektride.co.uk/cdn/shop/files/2571D9FF-E9AE-4004-9A55-C7FD4DD999D6_2048x.jpg?v=1640941114');">. Buy Sell Ride Confident < li class="result"> < div class="result__image" data-aspectratio="{{ it.product.image.aspectRatio }}" data-product-image> < div class="result__image-img product__media lazyload fade-in" data-bgset="{{ it.product.image.thumb }}" data-aspectratio="{{ it.product.image.aspectRatio }}" data-sizes="auto"> {{@if(it.product.badgeText)}} FAQ span>{{ it.product.badgeText | safe }} Road / Gravel / Touring Bikes> {{/if}} > I'm looking to find out more information about a product, where can I find this? p class="result__title"> Mountain Bikes> 01313745324 > [email protected] ProjektRide Bike Shop Edinburgh Kids Bikesp class="result__title">{{ it.item.text }} > > I'm looking to buy this product, when will it arrive and how much does postage cost? { "@context": "http://schema.org", "@type": "Organization", "name": "ProjektRide","sameAs": [ null, null, null, null, null, null, null ], "url": "https:\/\/projektride.co.uk" } Postage is free on orders over £50. Orders under £50, our postage charge is £3.99. Shop by Brandconsole.log("pr-product-page");ProjektRide Bike Shop Edinburgh Trek Ridgeback.site-footer { --bg: #1f2324; --text: #ffffff; --text-alpha-15: rgba(255, 255, 255, 0.15); --text-alpha-60: rgba(255, 255, 255, 0.6); --text-alpha-85: rgba(255, 255, 255, 0.85); } .footer-content__logo__image { width: 170px; } img src="//projektride.co.uk/cdn/shop/files/logo_header_2048x2048.png?v=1634060673" alt="" class="logo--footer"> Argon 18 QUICK LINKS About UsBUY SingularBlogSELL Building Your Bike From the BoxRIDE CONFIDENT Privacy Policy Frog Terms of Service #ProductTemplate--template--15326745395426__main { background: #ffffff; } .shop-pay-terms { --payment-terms-background-color: #ffffff } SERVICES SurlyServicing Workshop Prices Cycle to Work Custom Builds Custom Builds for sale    Services  Bike HireWorkshopWorkshop PricesBook a ServiceTrack Your Service Cycle To Work Schemes

Maximum tyre clearance: 29" x 2.6", 27.5" x 3.0" (note: not all drivetrains allow for these maximum tyre clearances)	Full-length cable housing guides for derailleurs and brakes							er available separately)\u003cbr data-mce-fragment=\"1\"\u003eBottom bracket shell: 73mm bottom bracket, ISO threaded\u003cbr data-mce-fragment=\"1\"\u003eMaximum tyre clearance: 29\" x 2.6\", 27.5\" x 3.0\" (note: not all drivetrains allow for these maximum tyre clearances)\u003cbr data-mce-fragment=\"1\"\u003eFork : 4130 Chromoly tapered unicrown fork, ED coated. 15x110mm Boost thru axle (included)\u003cbr data-mce-fragment=\"1\"\u003eFull-length cable housing guides for derailleurs and brakes\u003cbr data-mce-fragment=\"1\"\u003e3 sets bottle cage mounts on all sizes\u003cbr data-mce-fragment=\"1\"\u003eChainring clearance: 44-30t double, 38t single\u003cbr data-mce-fragment=\"1\"\u003eWeight: medium (18\") frame 2.60kg, fork (300mm steerer) 1.37kg\u003cbr data-mce-fragment=\"1\"\u003eTested to ISO 4210 MTB standard\u003c\/p\u003e\n\u003c\/div\u003e"}
Open search barax rot		24”-27” View all	61-69cm #FeaturedImage--template--15326745395426__1645734801adfd4c07 { --overlay-opacity: 0.2; }	48cmOpen cart Loading more	50cm .	48cm >	N/ABikes	XS ProjektRide
<5'0"-5'3"New Bikes a href="{{ it.product.url }}" class="result__image-link" aria-label='{{ it.product.title }}'>	152-160cmShop All New Bikesdiv class="product__tag{{ it.product.badgeClasses }}">Questions and answers	26"-29" >	66-74cm >	48-50cmHybrid / City Bikes>	50cm a href="{{ it.product.url }}">{{ it.product.title }}Please get in touch with a member of the team either by phone (	48-50cm > ) or email (	SmallElectric Bikes ) where on of the team will be more than happy to help.	Small li class="result result--full">
5'2"-5'7"Frames	157-170cm If the item is showing in stock, we aim to post the product within 24 hours. Please allow 5 working days to receive the item.	27"-30" We also have a physical store, if you are local please pop in -	69-76cm 82 Newington Road, EH91QN, Edinburgh.	48-52cm	50-52cmYeti	48-52cm	Small, Medium	Small, MediumBrother
5'6"-5'10"	168-178cmGenesis	29"-31" Contact Us	74-79cm Track Service Progress	52-54cmEnigmaInsure Your Bike	52-54cm Cookie Policy	52-54cm Refund policy	MediumKona	Medium
<5'9"-6'0"Delivery & Returns img src="//projektride.co.uk/cdn/shop/products/Screenshot2023-03-26at14.24.55_2048x2048.png?v=1679837100" alt="Halo Aerorage Track 700c Wheels" class="mfp-zoom-in-cur" id="31721315172578">	175-183cm Second-Hand Bikes	30"-33"INFORMATIONShop All Second-Hand	<76-84cm img src="//projektride.co.uk/cdn/shop/products/Screenshot2023-03-26at14.25.03_2048x2048.png?v=1679837110" alt="Halo Aerorage Track 700c Wheels" class="mfp-zoom-in-cur" id="31721315565794">	52-56cm		img src="//projektride.co.uk/cdn/shop/products/Screenshot2023-03-26at14.25.12_2048x2048.png?v=1679837116" alt="Halo Aerorage Track 700c Wheels" class="mfp-zoom-in-cur" id="31721315631330">	Custom Build Inspiration
	img src="//projektride.co.uk/cdn/shop/products/Screenshot2023-03-26at14.24.55_98x.png?v=1679837100" alt="" class="product-single__thumbnail-img">			img src="//projektride.co.uk/cdn/shop/products/Screenshot2023-03-26at14.25.03_98x.png?v=1679837110" alt="" class="product-single__thumbnail-img">			Insure Your Bike

< StemsGrips & Rear Suspension Aero Rage Track Rear Aero road rim on Halo FW-G Track SB hub 32H Fixed HG/Freewheel Black Tubes Aero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed/Freewheel WhiteAero Rage Track Front Aero road rim on Halo Track SB Front hub 32H Black - Sold OutAero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed/Fixed Black - Sold OutAero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed/Freewheel White - Sold OutAero Rage Track Front Aero road rim on Halo Track SB Front hub 32H White - Sold Out Accessories Decrease quantity Increase quantityLocks label for="quantity--template--15326745395426__main">Quantity input type="number" name="quantity" id="quantity--template--15326745395426__main" value="1" min="1"> Bike Packing Sold Out Notify me when this product is available: Phone Holders Lights ling_plan_allocations":[]},{"id":43981565591778,"title":"Aero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed\/Fixed White","option1":"Aero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed\/Fixed White","option2":null,"option3":null,"sku":"WHHAATWR","requires_shipping":true,"taxable":true,"featured_image":{"id":39122651283682,"product_id":8063322357986,"position":7,"created_at":"2023-03-26T15:01:18+01:00","updated_at":"2023-03-26T15:01:18+01:00","alt":null,"width":1170,"height":1116,"src":"\/\/projektride.co.uk\/cdn\/shop\/products\/Screenshot2023-03-26at15.01.13.png?v=1679839278","variant_ids":[43981565591778]},"available":false,"name":"Halo Aerorage Track 700c Wheels - Aero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed\/Fixed White","public_title":"Aero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed\/Fixed White","options":["Aero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed\/Fixed White"],"price":0,"weight":0,"compare_at_price":null,"inve Cleaners, Degreasers and Lubrication

					VisaHandlebars	SPLICE
			66-74cmForks	SmallFront SuspensionAero Rage Track Front Aero road rim on Halo Track SB Front hub 32H Black	Small	Small
5'2"-5'7"Finishing Kit	157-170cmTyresAero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed/Fixed Black	27"-30"	69-76cm	Small, MediumTubeless
					k SB hub Black - Sold Out	Aero Rage Track Rear Aero road rim on Halo FW-G Track SB hub 32H Fixed HG/Freewheel Black - Sold Out
Aero Rage Track Rear Aero road rim on Halo Track SB hub 32H Fixed/Fixed White - Sold Out		Quantity:	1		Medium, Large1+	Medium, Large
5'11"-6'2" Bottles and Cages	180-188cm	32"-35"	81-89cm Mudguards	Large, XL>	Large, XL	Large, XL Bags and Transportation
6'1"-6'5"	185-196cm Bells	33"-36"	84-91cmSubmit