Cycling UK Forum

You're definitely fighting an uphill battle here. Are the screws steel or aluminium? My course of action would be centre-punch, start a hole with a centre drill (wanders less than a normal drill), change to left-hand drill. It'd have to be with a 90' attachment on the drill to get square between the...

Sometimes SJS can be very quick posting stuff out, sometimes it can be a week. Best range of parts in the UK for my purposes

I am of the view that the only black on a bike should be the tyre tread and maybe the brake blocks. Shiny silver all the way for metal bits. Once stuff gets scabby, as in the pic above. I polish it up. If it gets a bit dull a fee minutes with some Autosol sorts it out. I had a 'silver' Rohloff. It ...

I often use those 8 sided nipple wreckers/spoke keys as tap wrenches. Just the job when there isn't enough room for a normal or ratchet tap handle. Particularily useful for chainstay/seatstay bridge mudguard eyelets. 11ga fits my M5 taps well

I think the flanges are drilled inaccurately. You can check this by measuring the distance between holes. It might also be that the flanges are eccentric. Errors are amplified by distance from centre if that is the datum. I also hate building e-motor wheels

Get someone to machine you a set of tube blocks that are 0.2mm less than the OD of the eccentric and clamp them in the vice. Hardwood would work fine but aluminium is best. If the torque proves too much put a bit of emery between the blocks and eccentric for extra friction. I also think a decent str...

Surely you’ll see the lever travel change and need to pull the lever closer to the bar if the hydraulic adjustment runs out? Unless the bite point is really close to the bar (in normal auto adjusting use) that’ll give you warning in time for new pads. It won’t go from effective braking to nothing i...

No chance of fitting a proper mudguard under there! Too tight You'd squeeze raceblades under there, or giant defy mudgaurds It's possible your brakes lack power because the pivots in the brake mechanism/cables are full of crud from road spray. Do they return freely? Is there slack at the cable/lever...

This looks to be the same type of construction as the UN55 - can't say I'm a fan of the blue cups, but I could accept them if the unit works https://www.ebay.co.uk/itm/68x103-124-5mm-Bottom-Bracket-Bike-Bicycle-Axle-Square-Taper-Sealed-Cartridge/303320956062?_trkparms=aid%3D111001%26algo%3DREC.SEED...

Actually, the Campagnolo/Fulcrum lockrings aren't as expensive as I recall, Condor are selling them for £6.99 https://www.condorcycles.com/products/campagnolo-afs-disc-lockring?variant=32173789872266&wgu=281345_187205_16056496318825_e87a74288b&wgexpiry=1613425631&source=webgains&site...

Yes, but expect the rotor to be somewhere between 0 and 1mm out of position to the left or right. Similarily with the cassette. So expect to either adjust your gears and brakes every time, or shim the rotor and cassette as required, or pay someone else to do it. The fulcrum wheels are centrelock, or...

A good way to grip a stuck seatpost is with a set of aluminium tube blocks. I made some and they work well for medium stuck seatposts, sometimes I add some emery cloth between post and block for extra grip. If the post is really stuck they won't help, and its definitely possible to damage a frame li...

I've always felt slightly bad that I wasn't able just to unscrew a cartridge bottom bracket and just replace the bearings. After all there's a lot of metal which is senselessly beginning recycled... ...so I drew this 20201115_220456.jpg It looks like a normal bottom bracket apart from the grease in...

I sometimes use an oxalic acid bath to remove rust from steel, is there a good reason not to for hardened/high carbon steel like this?

The latter hubs suffer from the rather fundamental issue that they will only build into a seriously dished, seriously weakened wheel. One of the Big Advantages of IGHs is that they build into wheels which are inherently stronger than those found on derailleur geared bikes; well not this one. All th...