This is intended as an additional reference guide for the experienced and/or qualified bike mechanics, fitting HUP components, wheelsets and framesets. It is not intended as comprehensive instructions, or a tutorial to become a bike mechanic or a substitute for mechanical experience/knowledge. You are expected to employ all relevant industry best practices. If you do not fully understand the basic terminology in this reference guide, stop and contact a qualified and experienced bike mechanic to fit your parts or build/maintain your bike.
Only attempt to fit parts if you are mechanically competent and experienced. If not, contact a qualified and experienced bike mechanic to fit your parts. Do not presume, stop if you are in any doubt or do not have the experience/knowledge. Whoever fits any component is responsible for it's correct and safe fitment.
Always use a torque wrench, which has been recently serviced and calibrated.
Assemble using the correct grade grease and/or thread lock, for the particular component you are fitting, to ensure correct functionality and service life. Once fitted, regular checks, adjustments or servicing is required to maintain your component or bike (including frameset) ideally after every ride.
It is best practice to fully check the installation of any component, after the first couple of rides (nominally 50 miles riding) to ensure correct torques and installation, allowing for settlement of new materials and bearings, and adjust where necessary. Additionally, to extend maintenance check intervals, mid-strength threadlock (such as Loctite 243) can also be applied to fixings - ensure clean thread surfaces before applying.
If you suspect fault with a component, frameset or bike, you must stop and contact us immediately. Do not continue to fit or use the component, frameset or bike under any circumstances.
Cranksets
Chainring bolts: ensure you tighten in crisscross/star pattern to not distort the chainring. Torque = see product page
Chainline: ensure you fit the correct BB, spacers and chainring to achieve the desired chainline, as specified on the crank product page.
Crank bolts: ensure this plastic bolt is tight enough to remove axle play, but not too tight to create high friction loads. Only do this, with pinch bolts loose, before tightening the pinch bolts to the correct torque.
Pinch bolts: ensure you tighten both bolts, alternating and increasing the torque in stages. Check tightness regularly. Torque = see product page
Stems
Pinch bolts: ensure you tighten both bolts, alternating and increasing the torque in stages. Check tightness regularly. Torque = see product page
End cap bolts: tighten all bolts, alternating and increasing the torque in stages, in a crisscross/star pattern. Ensure the handlebars cannot rotate or move, once the fixing bolts are up to torque. Check tightness regularly. Torque = see product page
Seat Posts
Saddle retaining bolts: ensure saddle rails are fully seated/engaged and you use the correct seat rail fixings for your saddle, taking into consideration Round or Oval saddle rails. Torque = see product page
Seat clamp pinch bolts: ensure to tighten progressively, without over-torquing, until the seat post cannot move under the riders load. Max torque = see product page
Headsets
Steerer expansion bungs on carbon forks: ensure full and clean engagement inside the fork steerer and torque to 9Nm.
Stem cap bolt: ensure no play in the headset, locking the front brake and rocking for and aft. There must be no movement in the headset. Typically around 2Nm is required.
Shifters
Clamping bolts to handlebars: ensure the grips, shifters or brake levers cannot rotate or move on the handlebars under the riders load, once the fixing bolts are up to torque.
Bottom Brackets
Fitting to the frame: ensure correct direction is installed, using the appropriate tool (DS = RH, NDS = LH).
Framesets:
Rubber cable ports: always fit the rubber port to the frame first, then the cables into the frame, will a small amount of grease to assist.
Cable orientation: we always orientate the cables, to enter the frame on the opposite side to the shifter/lever. Creates a smooth cable shape and stops paint rub damage on the head tube.
Protection tape: we recommend fitting frame protection tape to the usual locations, head tube, top tube and stays - to protect the paint from rubbing legs, feet, cables and mud.
Axles: regularly check your axles tightness. Torque settings are shown on the end of the axle.
Mech hangers: ensure correct torque for retaining bolts = see product page
Wheelsets
Spoke tensions: ensure they do not exceed the maximum or drop below the miniumum recommended tensions listed on the wheelset product page
Cleaning: pressure washing will damage your bearings and dry out your spokes. Do not direct a high pressure washer at your hubs or spoke nipples.
Spoke nipples: ensure you regularly oil the interface between the spokes and nipples, using capillary action to oil the nipple/spoke threads.
Visual examination: ensure you regularly inspect your wheel rims, spokes, nipples and hubs for signs of impact damage or wear
Safe pressures: do not exceed the safe tyre pressures listed on the tyre or the maximum listed on the wheelset product page. Too low a pressure can damage your wheel.
Truing: only attempt this is you are experienced and qualified at wheel building and always hold the spokes to avoid spoke twist.
Safe fitting: do not excessively load the wheel rim’s sidewall, when fitting tyres (particularly handmade tyres). Seek professional assistance.
Safe tyre sizes: do not exceed the safe minimum/maximum compatible tyre sizes listed on the wheelset product page
Rotor Lockrings: ensure you correctly torque, this should be marked on your lockring
Cassette Lockrings: ensure you correctly torque, this should be marked on your lockring