Winterborne Bicycle Institute is a fully tooled teaching facility, and teaching is what we do full time. We are a unique facility in that our roots started out as a high-end custom bicycle frame building shop. We shifted our focus once we had seen a tremendous increase in response from our customers suggesting that we offer more courses relating to all things bicycle. Which we did, and enthusiastically continue to develop.In addition to our fully tooled workbenches for our students to get the hands on experience that they need to prepare for themselves for the demands of a fast paced bike shop, we also have a full complement of frame building equipment.The majority of the frame related work that we continue to do now would be considered mechanical. Which is to say that we can offer a number of services that can alter, or fix an existing bike frame. We no longer have the time to build custom frames, however we do schedule frame repair jobs.
WHAT WE OFFER
We offer many services that most bicycle shops do not offer mainly because of the over all expense of the tooling involved. The frame is the heart of the bicycle and there are many frame related problems that can be misdiagnosed as component failures.Have a look at what we can offer here in this area of our web site, and feel free to give us a call, or write us an e-mail with your frame repair questions. As a frame repair client you can expect your consultation and frame examination to be free of charge
BOTTOM BRACKET FACING AND CHASING
Bottom bracket facing and thread cutting is a procedure preformed during the manufacturing of the bicycle frame. It is not uncommon for bottom bracket threads to become damaged because of improper installation, and other factors including corrosion. Chasing these threads with a specific die can repair, and redefine the threads for ease of bottom bracket installation. The facing procedure is much like head tube facing as the 2 sides of the bottom bracket shell need to be completely flat and parallel to each other.If the faces are not square it will result in prematurely damaged bottom brackets. Here at Winterborne Bicycles we have taps for both English/ISO/JIS (1.375" x 24TPI), and Italian (36mm x 24TPI) Bottom bracket shells.
Pricing for bottom bracket chasing & facing
BOTTOM BRACKET RE-SIZING
Once in a while bottom bracket threads can get damaged beyond the point of being able to be repaired by simply sending a tap through and chasing (redefining) the thread. This would render a bike frame useless. Here at Winterborne Bicycles we have the tooling and experience to save the completely stripped bottom bracket shell. If the ISO threads (1.375"x24TPI) have been destroyed we can ream out the bottom bracket shell and cut an Italian thread pitch (36mmx24TPI) into your existing bottom bracket shell.Most types of sealed bottom brackets are available in both ISO, and Italian thread pitches and diameter, so as you would need to purchase a new bottom bracket after the repair, compatibility issues will not be a problem. This repair can be accomplished on both Steel and Aluminum frames. so don't get rid of that frame because we can fix it for you!
Pricing for bottom bracket re-sizing
*note this can only be done for an existing ISO thread, Italian bottom brackets being the largest most available size.
HEAD TUBE REAMING AND FACING
Head tube reaming and facing is an operation typically handled at the factory during the initial manufacturing of the bike frame. Reaming is an operation that refers to the machining of the inner diameter of the head tube in order to produce the ideal press fit of the headset cups. Facing is the operation that makes the head tube ends flat, and square to each other. In a lot of cases frames will get powder coated after the initial reaming and facing procedures. Powder coating is thick and can be unevenly distributed on the face of the head tube. Even with a properly adjusted headset, headsets can be damaged if these faces are not square to each other. Here at Winterborne Bicycles we have head tube reaming and facing tools, and we have the experience to handle this type of repair for our customers.
Head tube facing
Head Tube reaming
Head Tube reaming and facing combo
REAR TRIANGLE RE-SPACING
With the modern popularity of the fixed gear bike, many cyclist are acquiring classic steel frames like nice old peugeots, and Bianchis and installing fixed gear and single speed hubs into the rear triangle of the frame. Problems quickly arise in that the rear triangle spacing of these old beauties are set for 127mm or 130mm hubs, and most fixed gear, or single speed hubs have an outer locknut spacing of 120mm, which makes them incompatible.
WHAT WE OFFER
At Winterborne Custom Bicycles we also offer high quality wheel-sets customized to your cycling specifications. All wheels are built in house by a Certified Wheel Technician, so you can rest assured that every wheel-set will be built to the tightest of tolerances. Each and every wheel is built for the intended cyclist in mind, as weight and strength are critical for wheels. Choices include Road, MTB, Touring, Track, and commuter wheels.
WE USE SAPIM AND WHEELSMITH DOUBLE BUTTED SPOKES.
After you select your hubs and rims, all wheels are assembled with double butted Dt Swiss Spokes. Why double butted? Mostly because double-butted spokes offer superior strength to a straight gauge spoke. The weakest part of a spoke is at the bend, where the spoke enters the hub flange, typically this is where a spoke will break. Because a double-butted spoke has a smaller diameter around the middle of the spoke stresses will be relieved in this area, which translates to less stress at the bend. There are some weight savings in using a double-butted spoke as well, however that's more of a co-benefit of using a double butted spoke. We can also supply bladed spokes, straight pull, straight gauge, any just about any other type of spoke necessary for your desired build.
Every wheel is built using the most modern tools available to wheel builders, including tension meters, dishing gauges, and a wheel truing jig.
For customers looking for TECHNICAL ASSURANCE, all wheels are dished repeatedly throughout the build. Each wheel is calculated to optimal spoke tension, and each spoke is tensioned to within 10% of every other spoke. All wheels are checked with a dial gauge and are straight (true) to within 0.2 mm both laterally and radially.
Priceing per wheel is
SPOKE CUTTING AND THREADING
Winterborne Bicycles owns a Phil Wood spoke cutting machine. This tool allows us to preform spoke cutting and threading operations. The machine is extremely accurate, and allows precise spoke length cutting to within a millimeter. The 56TPI thread that is produced is an extremely precise high quality rolled thread. We only use high quality stainless steel spokes, which are available in a straight gauge 2.0 diameter. In post production we clean all cutting fluids from the freshly cut spoke. The charge for this service is 1.75 per spoke, with a minimum charge of 15. If we are supplying you with a spokes for a wheel build we will also include the spoke length calculations within this cost.
SPOKE LENGTH CALCULATIONS
Wheel builders know how important it is to have the proper spoke length on hand when it comes to building a wheel. Spokes are sold in 1 millimeter increments, and calculations yield spoke lengths to within 1/100th of a millimeter. This level of accuracy is a must to building a proper wheel. Here at Winterborne we will preform your spoke length calculations for you, so you can initiate your wheel build with the proper lengths and avoid the frustrating experience of having to unlace and start all over again.
The cost for this service is 15 for one wheel, and 25 for a set. If you are purchasing your spokes from us we will include the spoke length calculations free of charge.