In this article, we use so-called affiliate links. With every purchase through these links, we receive a commission from the merchant. All relevant referral links are marked with . Learn more.
If you are fundamentally against electronics on MTBs, you can stop reading here. However, for those who want to enjoy the benefits of an electronic dropper post - simple installation, no cables, simple operation - the TranzX could be an inexpensive alternative to an electronic dropper post. Rockshox Reverb AXS or to Fox's new and expensive Transfer Neo be.
Assembly without any effort
During assembly, the EDP01 dropper post proved to be as user-friendly as all electric posts. The remote and post came already coupled out of the box. Thanks to the screw-in clamp, the saddle was also fitted more quickly than with most other posts. Although the remote also fits on the Sram Matchmaker clamp, we felt somewhat restricted when it came to lateral positioning. The overlong and not very stylish plastic lever didn't help much either - it wasn't possible to find a really optimal position on every brake lever combination.
Similar to the Reverb, the post head is also quite high, which means that the stroke (150, 175 or 200 mm) can be used less effectively. The battery is well protected behind a cover under the saddle. According to the manufacturer, one charge lasts for approx. 6000 descents, although we topped up the battery every few rides to be on the safe side.
Caution: During long car journeys, the battery can run down because the Vario seat post is taken out of standby mode when it is moved - if the red LED flashes, there are still approx. 500 operations left. The LED on the side of the housing shows whether there is still enough charge for the next tour. The manufacturer does not offer an app that can be used to check the battery status before setting off, but a glance at the LED is probably enough information for most bikers.
In our last test, a total of 15 Vario seatposts had to show what they are made of. You can find out which is the best telescopic support on the market in our big comparison.
Problem-free function, low extension speed
The function of the TranzX itself is flawless, and it also has very little lateral play. This also remained the case during our test. The extension speed was a little slow in its original state, which is why we used the shock pump to help. However, even with maximum pressure in the cartridge, the post only extends relatively slowly. In addition, some air always escaped from the cartridge when we unscrewed the pump.
Communication between the remote and the dropper post via Bluetooth also lags behind the speed of an AXS. We felt the seatpost responded with minimal delay and a somewhat noisy motor. The thumb paddle didn't convince us much in terms of feel and only provides restrained feedback. Despite all the criticism: With the TranzX EDP01, technology fans get a solid electronic dropper post at a fair price.
Price & Info - TranzX EDP01 dropper post
- Price: 499 Euro >> available here
- Weight¹: 701/ 69 g (support / remote)
- Stroke: 150/ 170 / 200 mm (tested)
- Diameter: 30,9 / 31.6 mm (tested)
- Length / insertion depth¹: 507 / 137- 259 mm
- Stack height¹: 60 mm
- Scope of delivery: Support; remote incl. clamp; battery; charger
- Special features: Adjustable air pressure; Bluetooth
Conclusion & evaluation
+ simple installation; clearly visible battery indicator; good value for money
- Quite heavy; battery drains during long car journey; slow extension; loud actuator motor; lever positioning; no app
¹BIKE measured values. Weight: telescopic seat post / ready to ride: seat post, remote, 1.5 m outer shell, cable pull ²The BIKE grade is independent of price. The BIKE rating is based on the school grading system with grades 1 to 5.
Stefan Frey
Editor
