An October morning that is cold in the garage and mild by lunch is not one ride. It is two, and most people dress for the first and then suffer the second. The jacket that felt right at 7°C is the jacket that cooks you at 17°C, and the usual response is to leave it sealed, because pulling over to undress feels like losing the day. You overheat, you stop drinking, and the afternoon is worse than the morning was.
The fix is a kit you can change without taking the armour off. Vents first. A thin mid layer you can actually pack. A second pair of gloves. Nothing in cotton.
What each layer is for
| Layer | Job at the start | When it warms up | Leave this at home |
|---|---|---|---|
| Base layer, synthetic or merino | Moves sweat off the skin | Leave it on. This is the layer you do not remove | Cotton. It stays wet, and you freeze on the next descent |
| Mid layer, thin fleece or wind shirt | The warmth you can take off | Stows in a tank bag or tail pack at the first real stop | A thick hoodie you cannot pack |
| Textile jacket with vents, armour in | Shell and protection | Open chest and arm vents before you are already too hot | Taking the jacket off. The armour goes with it |
| Neck tube | Stops the collar leak | Pull it down, or stuff it, once the throat is wet | A soaked tube left sealed against the neck |
| Gloves, two weights | Hands hurt first on a cold start | Swap to the lighter pair you packed | Summer gloves from a 5°C start, on the theory that noon will save you |
| Heated grips | Palms only | Turn them down as soon as the hands are comfortable | Using them as a substitute for a shell |
The order of adjustments
- Open the vents before you think about removing anything. Chest, then arms, then the cuff. This is the change you can make at a junction, with the armour still on. If the jacket has no vents worth the name, it is the wrong shell for a day that will warm up.
- The mid layer comes off at the first real stop. A thin fleece or a wind shirt goes in the tank bag or the tail pack. A thick hoodie does not, so do not start in one. Once it is off, the shell and the armour stay on. Riding the warm part in a T-shirt because the jacket is "too much" is how a mild afternoon becomes an unprotected one.
- Hands and neck decide whether you turn around. Gloves are the first thing that hurts on the way out and the first thing that overheats on the way back. Pack the lighter pair and swap them. A neck tube that was right at the start becomes a wet collar by late morning. Pull it down. Do not leave it sealed.
- Heated grips are for the hands, not for the rest of you. They do not replace a shell, and they do not fix a summer jacket with the vents shut. Turn them down as soon as the palms are comfortable. Left on high into the warm part of the day, they give you sweaty gloves and then cold hands when that sweat cools.
- Cotton stays at home. A cotton T-shirt under the jacket holds the sweat from the climb and chills you on the descent. In the mountains the descent is often the coldest part of a day that felt mild in the valley. A synthetic or merino base layer stays.
When the warm part of the day is also wet
Do not solve rain by closing every vent and adding a plastic oversuit you cannot pack. A membrane jacket with the vents shut is already a hot shell. The oversuit is for when the rain is the whole ride, which is a different packing list, covered in motorcycle rain gear. A cold start also fogs a visor that was clear yesterday. Sort that the night before, not at the end of the lane: helmet visors and anti-fog.
