All Northrock bikes come with a Quick Assembly Guide specific to your model. CL5.

Experience performance, efficiency and speed like never before. Sophisticated frame design for a comfortable upright riding position and easy mount. French: 35mm x 1.0mm.

The OC Women's cruiser model is designed with quality, function and style. Tackle any terrain effortlessly with a SHIMANO crank and SHIMANO ACERA drivetrain with 24 speeds for performance and durability. KOM: A Guide to The Bookstore Unless it has 24 TPI.

The result was a hodgepodge of design specifications that can confound the consumer trying to figure out what replacement bottom bracket he needs, especially if it is an older bike. In the 1970s riders would come back with Mondia or other Swiss-made frames and go crazy looking for bottom bracket parts. This is the newest Northrock bike spotted in the store.

Tackle any mountain trail with premium components and a frame that is stiff yet light. Crossover from fitness to commuters. Welcome, and congratulations on the purchase of your new Northrock Bicycle. If you try to insert an English bb set into an Italian shell, it will just slip in. Another old British spec that will turn up most often on tandems. All Rights Reserved. Inspired by the natural beauty of the coast. //-->. google_ad_width = 300; go » XC29.

If you are restoring an old bike you may need a thread gauge. It's 5 thousandths of an inch bigger in diameter and is reasonably compatible with standard English-threaded parts. For your convenience you can register your bicycle on-line. Sophisticated frame design for a comfortable upright riding position and easy mount. Click here. The bottom bracket diameter is slightly smaller than the Italian and has one thread per millimeter. Italian: 36mm x 24 TPI. Year-by-Year Results (2001-2020) For an explanation of what the above chart means let's start with the classic picture of a bottom bracket shell from an old Campagnolo catalog: This is a view of the bottom bracket shell from underneath the bike, It is for what is now an older style 3-piece crankset (the crank arms slide onto a steel tapered axle). Lightweight with carbon fork.

Shimano defines an Italian bottom bracket with a slightly larger diameter than the Italians do. XC6. The right-hand cup is usually referred to as the fixed cup and the left side is the adjustable cup side. When the threads of an English bottom bracket get stripped, it can usually be be reamed and re-threaded Italian. Learn more about our quality partner components. The second cup is the left hand, or adjustable cup. All-aluminum frame and 29" wheels deliver less rolling friction and more traction to tackle any terrain. Here is a lengthy explanation of what is involved in preparing a frame to be assembled. Track frames can use 65mm shell to pull the arms in a little closer to the center line of the frame to give the pedals a little more clearance on a banked track. Smooth tires for paved surfaces. Ride for miles effortlessly with premium drivetrain and a rigid fork for efficiency. All Rights Reserved. Generally Italian road frames have 70mm wide BB shells and British and French use 68mm shells. Click here for our FAQ page for guidance on some of our most commonly asked questions. All-aluminum frame and 29" wheels deliver less rolling friction and more traction to tackle any terrain. Northrock - xc6 As rugged as the mountain, the XC6 is designed to perform. The fixed cup is the one that goes on the chainring side. Bottom bracket assembly A traditional bottom bracket has 2 bearing cups that screw into the frame, a right hand, or fixed cup and a left side cup. Stuff We Like, Rider Histories As rugged as the mountain, the XC6 is designed to perform. The OC Men's beach cruiser is designed with quality, function and style for a bicycle that looks as good as it performs.

You still have to use a 68mm spindle, however.

go » Comfort.

The fixed cup is the one that goes on the chainring side. Alloy lightweight rustproof rims with stainless steel spokes and a KMC lightweight add to the strength and durability of the XC6. Tackle any mountain trail with premium components and a frame that is stiff yet light. Expertise video guides on getting the most out of your ride. Usually the chainstays, downtube and seat tube are attached the the BB shell. First of all, note the center measurement, the width of the bottom bracket shell. A lightweight frame and fork give you freedom to choose your ride - street, park, or dirt. Lightweight with carbon fork. google_ad_client = "ca-pub-2062310126166513";

It is installed first and it tightened until the flats on the cup are snug against the bottom bracket shell. © Copyright Northrock Bikes 2020.

If a bike has been tapped with taps made in Italy, an Asian bottom bracket may not go in. This is the most common bottom bracket specification in the world. After making sure that it is optimally tight so that the bearings run freely, without binding, it is in some way locked down. After all, you want your mountain bike to be able to handle the trails! 73mm oversize, The best ride is a safe ride. Even if they were manufactured perfectly, they change shape when heated during brazing. Ride for miles effortlessly with premium drivetrain and a rigid fork for efficiency. google_ad_slot = "2395833724"; A lightweight frame and fork give you freedom to choose your ride - street, park, or dirt. All-aluminum frame and 29" wheels deliver less rolling friction and more traction to tackle any terrain. You can also click on your bicycle model from the following list to view more information on assembly.

go » SC7. SR Suntour XCT, preload 80mm can handle unpredictable terrain, while WTB 26x2.1 Moto Raptor tires make for superior climbing, braking, and cornering while on the trails. For all intents and purposes, the same as English and often sold as English. Running Park Tool taps through the BB will make it compatible with Shimano and other Asian company's products. To ensure the bearings run true and the the cups stay tight, the bottom bracket should be tapped and faced. Oral History Project Italian bike makers sold most of their goods in Italy; French makers concentrated on French customers and British makers made bikes for their home market. Both sides of the shell have right-hand threads. Chart of Bottom bracket shell specs

This usually varies from 65mm to 70mm but in some cases can go to 72mm. google_ad_slot = "0004268070"; An explanation for all these bb types is just below the chart. Bikes & Travel Year-to-Date Results This means the hole in the bottom bracket shell is about 1.370 inches in diameter (it's actually the diameter of the cup that is screwed in) and that the threads are spaced 24 to an inch. Before you take your bicycle for a ride we encourage you to complete the following information for future reference, and we suggest you read through the owner’s manual to familiarize yourself with the operations of your new high quality Northrock Bicycle. About Us Designed for pure action. Today, French export production generally uses English BBs, but there are millions of bikes out there with French BBs because a lot of the bike boom bikes of the late 60s and early 70s were French. Shop talk; Support; FAQ's; Mountain. Because component manufacturers have to make bottom brackets that will fit a wide variety of bicycles, built with varying degrees of precision, the left cup is installed last. The Northrock XC6 Mountain Bike is available in an 18″ or 19.5″ frame size. Food google_ad_width = 728; At Northrock Bicycles we are dedicated to providing a premium bicycle riding experience. The aluminum 6061 lightweight frame is designed to be strong and sturdy, yet light for superior handling. Expertly blended componentry and lightweight frame design enhance performance. It is recommended that you read through the Quick Assembly Guide and Owner's Manual prior to assembling you bicycle. SHIMANO true and proven Altus shifters with integrated brake levers and TEKTRO disc brakes instill confidence giving you the ability to stop on a dime. /* right side */ ), 68mm, Smooth tires for paved surfaces. Site Map, lengthy explanation of what is involved in preparing a frame to be assembled, KOM: A Guide to

Photo Galleries, Glossary, Terms, Lists Smooth tires for paved surfaces. The aluminum 6061 lightweight frame is designed to be strong and sturdy, yet light for superior handling. //-->, Tour de France CL5. Take the time to complete your bicycle registration. Raleigh (and other Raleigh brands like Rudge): 1 3/8" x 26 TPI with left handed fixed cup. It is installed first and it tightened until the flats on the cup are snug against the bottom bracket shell. google_ad_client = "ca-pub-2062310126166513"; Our goal at Northrock Bicycles is to be with you along the way.

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