Slash Gen 6 FAQ

What’s new about the frame?

All-new frame with a high pivot suspension design
– Updated, slacker geometry and optional angle adjust headset cups
– Increased rear travel from 160 mm to 170 mm
– Leverage rate adjust chip
– Stock mixed-wheel builds (29” front, 27.5” rear) on all sizes except S (27.5” front and rear)
– Updated frame protection with Integrated Carbon Armour and a noise-reducing chain stay guard
– Room for longer dropper posts

Do any frame sizes feature curved top tubes for lower standover? 

Size S does.

Can size S bikes with 27.5” wheels run 29” wheels?

No, there’s not enough fork or frame clearance.

Can I put a 29” wheel in the rear?

Yes, size M and up can run a 29” rear wheel. This requires swapping the bolt-on lower shock mount (sold separately) and removing the integrated rear mudguard (not enough clearance for 29” wheels). See service manual for part numbers.

Can I run 27.5” front and rear on M and larger sizes?

We don’t recommend it.

Why doesn’t it have Mino Link?

Because the angle-adjust headset and bolt-on lower shock mount make it redundant. Use the headset to adjust headtube angle, and the bolt-on lower shock mount to adjust BB height when switching rear wheel size.

Are the chain stays size-specific?

Yes. The size-specific chain stay lengths are achieved by altering the position of the bottom bracket shell on the main frame. This means that replacement chain stays are the same for all frame sizes. See the geometry chart on the bike page for complete geo details

So this means that there’s only one chain stay and it works for every size?!

Yes, there is one for carbon, and one for alloy.

Will the alloy stays work on carbon frames and vice versa?

They will fit, but we did not test these configurations, so we cannot officially recommend it.

How does the adjustable headset work?

You can swap out your headset cups to get a full degree of head angle adjustment. The bikes come with neutral/zero-degree cups. Consult the service manual to find part numbers to order the angle-adjust headset cups.
The upper cup is a drop-in part, but the lower cup needs to be pressed in with a standard shop headset press. The cups have notches and laser-engraved guides to help you install them straight. For more detailed installation instructions, watch the Slash Service Tips video on Trek U.

What’s the maximum tyre width?

2.5” max width for both 27.5” and 29” wheels.

Are these bikes tubeless-compatible? What additional parts are required? 

All Slash complete bikes come with all the parts you need to set the wheels up tubeless. No additional parts required. Just add the included sealant.

Are the idler pulleys specific to Slash?

Yes, they are larger than most idler pulleys for added efficiency. See the service manual for replacement part numbers.

That oversized lower idler pulley is sick. Can I use it on the high-pivot Session?

Yes! Consult the Slash service manual for part numbers.

What is the maximum fork axle-to-crown and travel? 

Carbon and Alloy – 190 mm max travel (all sizes), 587 mm axle-to-crown (size S), 606 mm axle-to-crown (size M-XL)

Is it compatible with dual crown forks?

They will fit, but we haven’t tested them, so we cannot recommend a dual crown fork on Slash at this time. However, you can put a 190 mm single-crown fork on there, and that’s pretty close and has a better turning radius.

How much dropper post insertion does the frame have? 

S – 290 mm, M – 305 mm, ML – 325 mm, L – 340 mm, XL – 370 mm

Which aftermarket shocks are compatible?

We know that the following shocks will fit. Other shocks may fit but should be checked for frame clearance at full suspension compression.
– RockShox Super Deluxe coil
– RockShox Super Deluxe AXS
– RockShox Vivid Air
– Fox Live Valve NEO
– Fox X2

What size hardware is needed for aftermarket shocks?

Slash takes a 230 mm x 65 mm shock with an industry standard 54 mm x 10 mm upper and 20 mm x 8 mm lower standard pin mount.

What is the maximum chain ring size? Minimum chain ring size? 

Min – 28T, Max – 34T round, 32T oval

What is the chain line?

55 mm

Does the new high-pivot layout require a longer chain?

When the stock 30T chainring is installed, a 126-link chain should be used.

What is the crank interface?  

BSA 73 mm, threaded

Which version of Knock Block does it use? 

No Knock Block here.

What is the rear brake mount? What is the max rotor size?

Frame – 200 mm direct post mount with 220 mm max. Fork – check manufacturer spec

Does it have ISCG mounts? 

ISCG 05, 3-bolt

Will the storage doors be colour-matched?

Some colourways will have paint-matched storage doors, but not all. Generally, matte paint jobs will not have paint-matched storage doors.

Does it come with a water bottle cage?

All models (even the frame sets!) come with a Bontrager right-side-load water bottle cage. Our apologies to the lefties.

Are there any special tools needed?

There’s a new tool to make it easier to remove bearings in the rocker and main pivot. See service manual for part numbers