[quote=“Nuit”]Gap is about 30-35km, depending if you ride the main road (highway #9) or not. Totally flat though. Local trains are very easy to board with a bike, though not always that frequent.
Taroko end-point is the village of Tianxiang, at the top of the gorge. Yes, about 600m altitude. Limited food and supplies, plus 5 star hotel. And there are the hot springs of Wen Shan only 2km further up the road.
Neat bike packing, I think you’d stand a chance of getting away with that on Taiwan non-local trains too.[/quote]
You might get away with it. I wouldn’t recommend trying. Too many people try to do this and they are pretty strict these days. Things are much more lax from Hualien on.
You can’t take a bike in any form on any of the non-designated express trains of the high speed rail. You can take a bagged bike or an assembled bike on some LOCAL trains usually in the late morning or afternoon.
For example, if you were leaving on Thursday 11 Nov., you would need to show up at noon at Wanhua Station (NOT Taipei Main Station)) and take the local 4188 train at 1:278pm to Xinsuao (New Suao station not plain old Suao) station arriving at 4:15pm. Then you would have to wait for the 4228 at 20:18 arriving in Xincheng about an hour later. Those are designated trains that you can definitely take.
You will almost certainly be able to slip onto the 686 leaving at 4:25pm from Xinsuao or the 604 at 4:52 even those these are not designated trains. Again these arrive about an hour later in Xincheng.
A much easier way in my opinion is to ship your bike on the baggae train from Wanhua on Thursday before 6pm. It will be in Xincheng the next morning. Take regular train down to Xincheng that evening.
Xincheng is a very small station, so you may be able to pick your bike at 5:30am when the first train comes. I would suggest that you give them a heads up when you arrive. The station people are very friendly and willing to help although English will be limited. Alternatively, there is a Giant rental shop next to the station. You could rent a bike to go up and down Taroko and then pick up your bike on the way back.
By riding to Tianxiang, you will be traveling riding through the most spectacular parts of the gorge. Like Nuit said, the up and back on this one is well worth it. For a swim stop off at Shakadang on your way out.
You could ride the gap. But Hualien City (which is what you would be going through) is suprisingly unpleasant and the local trains are really easy to hop onto if there is a convenient one.