u/anbatvr
Tail Tidy & LED Signals on the new DR-Z4S: Clean install without cutting wires
Tail tidy setup. Here are the technical highlights:
- No Cutting: Used connectors to match the OEM harness.
- Structural Trick: Instead of trimming the Racetech plastics, I heat-bent them. The flap now rests on the subframe crossmember, distributing the load and adding rigidity.
- Hyperflash issue: Replacing OEM with new small LEDs causes fast blinking. You can solve this by adding resistors.
Full technical breakdown, wiring diagram, tutorial and more on the hub drz4s.org.
[Resource] 300+ Torque Specs for the new Suzuki DR-Z4S/SM (2025+)
Hey everyone!
I’ve just finished compiling a comprehensive datasheet with over 300 torque specifications for the new DR-Z4S and SM.
Since the bike is so new, I figured this might be useful for anyone starting to work on their own builds or doing maintenance.
You can find the high-res PDF here: https://drz4s.org/wiki/
A quick note: I don't have the full, final service manual yet, so I’ve cross-referenced everything as accurately as possible. If you spot any typos, weird values, or if something feels off, please let me know in the comments so I can update the file for everyone.
I’ve included everything from engine mounts to the specific steering stem procedure and spoke nipples for both S and SM versions.
Hope this helps the community!
Cheers, stay tuned!!! ✊💨
First Real-World Test & Review: 3 Days on Elba Island (with a "crash test" lol)
Hey everyone,
I finally took my new DR-Z4S out for its first proper "baptism of fire" — three days of rocks, technical trails, and coastal paths on Elba Island (Italy). I wanted to see if the bike lives up to the hype and how it compares to the old-school DRZ.
The TL;DR Review:
- Engine & Gearbox: Surprisingly smooth. It pulls hard from the bottom without that "hollow" feeling some higher-hp twins have. The clutch is butter.
- Handling: The suspension is a massive step up from the old model. It soaks up everything, giving way more confidence in the technical rocky sections.
- Fuel Economy: Blew my mind. 25 km/l (approx. 59 mpg) while riding hard off-road, and close to 30 km/l (70 mpg) when taking it easy.
- The "Oops" moment: I unintentionally tested the bike's durability with a low-side crash. Good news: the canister delete works perfectly even when the bike is upside down! 😂
The Cons:
- Gearing: 5 gears are manageable, but I really missed a 6th gear for the highway stretches. The 1st gear also feels a bit long for very tight technical stuff.
- Sound: Way too quiet. It’s hard to manage the engine "by ear" at low revs because you just can't hear it.
- Throttle: Very sensitive/snappy, which takes some getting used to when standing on the pegs.
My Setup for this trip:
- Tires: Pirelli MT21 (Rear) / MT16 (Front), full street legal, size too.
- Protection: Acerbis Rally Pro handguards.
- Mods: Rtech plate holder and canister removal.
I’ve put together a video of the ride and the full technical breakdown (no voiceover, just the bike doing its thing).
Full Video/Review here: https://youtu.be/TgSvv3j8pqA for those interested in the technical side, I’m documenting all my mods and tutorials over at drz4s.org.
Would love to hear your thoughts — especially from those of you coming from the old DRZ400. Are the 5 gears a dealbreaker for you, or is the new suspension enough to make the switch?
Cheers!
Three days exploring the trails of Elba Island for the “baptism of fire” of my new Suzuki DR-Z4S. My advice remains: keep a wide margin when switching bikes until you are fully comfortable with the new machine. I even tested the canister removal “the hard way” with a crash, and I can confirm it works even if the bike is upside down!
Technical Setup
Tires: Pirelli MT21 (Rear) / MT16 (Front) – passed with flying colors, even in the wet.
Protection: Acerbis Rally Pro Handguards.
Mods: Rtech 30° plate holder, Lampa Nano indicators, and canister delete.
Impressions
The DR-Z4S is surprisingly easy to ride. The engine is responsive, pulls hard from the bottom, and follows inputs surgically. Unlike some 50-70hp competitors that feel jerky or hollow at low RPM, this balance makes the DR-Z4S the perfect Dual-Sport base.
The Pros
- Handling: Suspension soaks up everything, giving me confidence I never had on the old DRZ.
- Clutch & Gears: Super smooth clutch lever and precise shifting; neutral is always easy to find.
- Electronics: Well-tuned. Front ABS works great off-road, and Gravel mode is a lifesaver on slippery terrain.
- Fuel Economy: Amazing. 25 km/l with spirited riding, 30 km/l is definitely possible.
The Cons
- Gearing: 5 gears are okay, but a 6th gear for the highway and a shorter 1st for technical sections would be ideal.
- Sound: Too quiet. You lose that ear-to-engine feedback needed at low revs. We need an slip-on at least!!!
Notes
Suspension: Excellent for technical stuff, but needs a stiffer setup for aggressive road riding.
The throttle is very sensitive (tricky when standing) and the rear brake is powerful—locked it a few times on descents, but I’m getting used to it.
Tires look great for my upcoming Balkans trip!
The key torque values and technical specs for the new DR-Z4S are now available. If you are curious about how the new engine compares and where the power sits in the rev range, all the data has been compiled on one page.
Check out the full breakdown here: https://drz4s.org/wiki/
Note: A comprehensive PDF guide with all the torque settings and technical values is currently being prepared for quick reference in the garage. It will be available for download on the site soon.