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Expertly blended componentry and lightweight frame design enhance performance. For your convenience you can register your bicycle on-line. Smooth tires for paved surfaces.

Crossover from fitness to commuters. Tackle any mountain trail with premium components and a frame that is stiff yet light. For customer service call 1-866-967-2766, Monday thru Friday, 9:OOAM – 5:OOPM Eastern Standard Time. Tackle any terrain effortlessly with a SHIMANO crank and SHIMANO ACERA drivetrain with 24 speeds for performance and durability. Tackle any terrain effortlessly with a SHIMANO crank and SHIMANO ACERA drivetrain with 24 … Usually the chainstays, downtube and seat tube are attached the the BB shell.

The right-hand cup is usually referred to as the fixed cup and the left side is the adjustable cup side. All-aluminum frame and 29" wheels deliver less rolling friction and more traction to tackle any terrain. Our goal at Northrock Bicycles is to be with you along the way. Shop talk; Support; FAQ's; Mountain. google_ad_height = 250;

A lightweight frame and fork give you freedom to choose your ride - street, park, or dirt. Site Map, lengthy explanation of what is involved in preparing a frame to be assembled, KOM: A Guide to Even if they were manufactured perfectly, they change shape when heated during brazing. 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.

KOM: A Guide to go » Comfort. Italian: 36mm x 24 TPI. The bottom bracket diameter is slightly smaller than the Italian and has one thread per millimeter. 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. Paved Road Climbs. Expertly blended componentry and lightweight frame design enhance performance. 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. Contact Welcome, and congratulations on the purchase of your new Northrock Bicycle.

This is the most common bottom bracket specification in the world. google_ad_slot = "0004268070"; It is installed first and it tightened until the flats on the cup are snug against the bottom bracket shell. Alloy lightweight rustproof rims with stainless steel spokes and a KMC lightweight add to the strength and durability of the XC6. Another old British spec that will turn up most often on tandems. Tackle any mountain trail with premium components and a frame that is stiff yet light. Designed for pure action. Sophisticated frame design for a comfortable upright riding position and easy mount.

To ensure the bearings run true and the the cups stay tight, the bottom bracket should be tapped and faced. Smooth tires for paved surfaces.

Raleigh (and other Raleigh brands like Rudge): 1 3/8" x 26 TPI with left handed fixed cup. An explanation for all these bb types is just below the chart.



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