David Marshall

Thats how to stress relieve a wheel.

I would also go for the Giant with the 105. That said neither of those group sets are supported any longer so if you are sure you will upgrade soon you should leave as is. You will sell the Scott easier with the 105 than the Tiagra.

Sounds like a freehub issue. I am guessing that it has a sealed Shimano type freehub that screws onto the hub body. Not too much that you can do apart from replacing it.

The RockShox 600psi is the one to get because some of the shocks call for 500psi (RL, XX430 and some of the Ario shocks). The problem I have with the RockShox pumps is that they do not supply hose replacements. Keep the rubber well clear of oil and grease! Clean hands before using and don't use the pump to reduce air can pressure.

Boomslang? They have a few colour variations.

Before you strip the spring out check that the plastic cable guide that leads the cable to the outside of the shifter and into the housing is not loose or damaged. It shouldn't move when you shift.

They are available and not expensive but be careful as there are different ones for different cranks. As to how necessary they are - I don't think they do too much. I see a lot of bikes with the pins missing or the whole plate damaged or even gone.

Pieter du Preez (Superpiet) is your man if you want to compete. You should be able to reach him on social media but if not I can forward you his details.

I hope all you grandfathers appreciated the support. Apparently my little man was so worried about missing me that he shouted "Go Grandpa" to every passing group from elites down! As it happened I was tailed off from VG at Kyalami and passed them all on my own.

I didn't see the start pens. Anyone know where the start batching will be?

I can fit for you. I think I have a second hand tensioner/spacer kit as well. Based in Kyalami.

Bit of a mine field. I have 18 different headset bearings in stock. Some look identical but are not the same. To be honest I wouldn't trust the average mechanic to pick the right one and the frame manufacturers are not very forthcoming with details either. You need a tool to measure the angles as well as the dimensions.

Most of those 26" forks used between 130 and 150ml in the damper. Pour oil into the into the stanchion, cover the top and cycle the rebound. Extend and then adjust the level so that when you fit damper you cover the foot of the cartridge. Something like in the pic.

I once had a customer bring me parts to build the lightest alloy wheelset around. I can't for the life of me remember the rim brand but it was German and they had built very light 26" rims. Unfortunately they didn't transition to 29" well. It was the only time that I've had a wheel pretzel while building (at around 80 kgf). Needless to say they didn't last well. After that I threw out the workshop scale and all the aluminium nipples. Talking of light I see that Light Bicycle have built a carbon wheelset (road) at 718g. Disc and tubular. Rim is 180g

I'm with Nick here. I am not brand bashing but if you look at the pics of the hand built wheels you don't see straight pull spokes. My advice is that whatever you choose keep it that way!

My 2c. When you build a wheel the most important consideration is spoke quality and spoke length. Next would be the rim choice and lastly the hub. As long as the hub has a straight axle, good bearings and strong enough flanges it will do the job and outlast the rim. When it comes to replacing a hub check that the spokes are double butted and in good nick. Then make sure that the rim is in good condition. You can then replace the hub with (preferably) the identical hub or one with the same dimensions (unlikely). Otherwise you will need new spokes. So in short you will have the cost of a wheelbuild (R600), spokes and nipples (32 for R850) and the cost of the hub. You need a really good rim to justify this on a used wheel! Unless the rim is exceptional I would suggest selling the wheel and starting from scratch.

I share the negative sentiment with the current market where it is. More players struggling or closing than opening. Sourcing is difficult but not insurmountable. Retailing is far more challenging.

Can't agree more. I know of shops that will build a wheel for under R200. Not me. I charge R600 for a standard wheel build and that will usually take me over an hour. I can build in half an hour but I am a perfectionist so you can bank on at least an hour. As for tools - I can build without any fancy equipment but I can build a far better wheel with good tools. My three most expensive tools would set you back around R115 000. (P&K Lie truing stand EU 1800, DT Swiss tension meter EU336, Kowa spoke cutter/threader USD2600) Throw in VAT and shipping and you get there. That is 190 wheels have to be built before I earn a cent. Haven't mentioned a host of other tools - dishing tool, spoke keys, spoke stock (of around R80 000) and a lot more. You are right - R600 barely turns a profit.

I charge based on time (R600 per hour). Can be anything from R75 for a simple true to a lot more if you need to re tension , dish, remove tubeless and straighten out dents etc.

Also check that you have the seal between the hub and freehub in properly. You need to press it in with the flat of a screwdriver to make sure that it is fully recessed into the hub. The cassette needs to be off freehub to get to the seal. Takes quite a bit of pressure to get it to seat.

Before letting oil out I would push the pistons in with the old pads and fit the brake bleed block. If you can get the block in chances are that you don't need to let any oil out.

My shock is playing up... or is it my fork?

Me too.

OP is not clear in exactly what or why he wants to upgrade. I am assuming that something is not working on the 9 speed. I agree that 105 is much better than any of the others but i would sooner replace a worn 9 speed 105 after X thousand shifts with a new Sora or Microshift with 0 shifts. If the OP wants to upgrade to more gears I would replace the drive train complete.

I disagree. You can hack a lot of things to work together but if you want good crisp shifting you better take care especially with the change in pull ratios with the new groupsets. Plenty of info online.