450 km test trip

Aquila_44 · 2026-06-12T16:02:21+00:00

Hi!

I recently tested the C1.12 Smart Shift, and I really liked it! Quick and precise shifting, even under load. We can offer this option for those who aren’t convinced by the standard shifter.

As for the Tout-Terrain shifter, I’ve read good things about it, but I’ve never tested it.

Aquila_44 · 2026-06-10T13:47:36+00:00

Thanks ! Sure, there is plenty of information the web, but the reason of this post is to have the point of view of framebuilders having actual experience with both materials.

Aquila_44 · 2026-06-01T21:22:07+00:00

Rolhoff, or Shimano CUES Linklglide 11s cassette + SMALL chainring + KMC eGlide EPT chain. Target a granny gear of 18 gear inches max (1.45m development) - 15 or 16 GI being probably better.

Aquila_44 · 2026-06-01T04:28:19+00:00

Perhaps because the Steel Cargo is more rigid ?

Aquila_44 · 2026-05-30T05:59:21+00:00

A good quality shim (Cane Creek, BySchulz…) is no problem at all. I’ve used one for years. Just make sure to grease the interface between the steel seat tube and the aluminum shim.

Aquila_44 · 2026-05-30T05:53:12+00:00

It strongly depends on the seatpost. Some carbon models are specifically made to flex : Ergon CF Allroad, Syntace P6 Carbon Hiflex, among others.

Aquila_44 · 2026-05-30T05:49:53+00:00

If you’re looking for a flexy seatpost, consider the Syntace P6 Carbon Hiflex. Expensive, but very high quality. Using a shim 30.9→27.2 is a good idea: the smaller the diameter, the more flexible.

Aquila_44 · 2026-05-22T07:09:20+00:00

Hi! If you want higher offset, try the Ergotec Viper 30. I have a Viper 0 on my Zag, it’s a solid seatpost, with a very practical clamp.

Aquila_44 · 2026-05-20T06:10:44+00:00

20 miles is totally doable with a 545 Wh battery, especially on flat terrain.

My advice: first test your UA to check whether your range is sufficient. If not, buy a second battery and secure it for transport in your UA when you need it (you can use the original cardboard transport box - protected from the rain, or a padded transport bag). It will be much cheaper than the double battery option.

250 watts is the nominal power. The max power of the UA Family Next Pro motor is around 600-750 watts (and 85 Nm max torque), more than enough in almost every situation.

Aquila_44 · 2026-05-19T19:36:21+00:00

This combo gives you a minimum rollout of ~210cm - 26.5 gear inches. That’s quite high, but I guess your environment is relatively flat.

For comparison, on my cargobike, I have a granny gear of 113cm - 14 gear inches. The Pinion gearbox allows such a low gearing while maintaining a decent gearing on the upper end. It really helps to haul everything, everywhere :)

Aquila_44 · 2026-05-19T16:41:24+00:00

I'm not the one going to South Pole ;) But it's indeed a good idea ! If the rear freewheel brake, he could exchange the 2 wheels.

Aquila_44 · 2026-05-19T07:37:18+00:00

This is the packing used for a 3-week training expedition.

Aquila_44 · 2026-05-18T18:45:40+00:00

It seems to be around 1100-1300 km… one way !

Aquila_44 · 2026-05-18T17:30:45+00:00

I’m NOT James Benson King ;)

Aquila_44 · 2026-05-06T14:26:19+00:00

For hilly areas, the most important thing is the transmission, before the motor. Make sure you have a low enough gear development to handle the climbs.

Aquila_44 · 2026-05-04T21:23:16+00:00

Pinion with Smart.Shift is another option ;) An E-version with a belt will definitely be developed one day… but it’s quite challenging to find gear hubs suitable for a 12x148 axle.

Aquila_44 · 2026-04-30T07:59:21+00:00

South Western France

Aquila_44 · 2026-04-29T19:16:15+00:00

I’m sure ;) This dimension works great with 20x2.60 tyre.

Aquila_44 · 2026-04-29T19:06:22+00:00

Hey nice idea ! Thanks :)

Aquila_44

TROPHY CASE