Hey, Bryce here. The single most common question that lands in the ThrottleCo inbox is some version of: "I have an MX4 — will the MX3 part fit?" It is a fair question, because Talaria did not redesign the Sting from scratch between generations. They refined it. Which means a lot of parts carry straight over, some carry over with a caveat, and a handful absolutely do not — and the ones that do not are usually the expensive ones.
This guide is the compatibility breakdown I wish existed when I started building Stings. It is organized by system, with the specifics that actually determine fitment rather than vague "should fit most Talarias" language.
The short version: a compatibility table
Here is the quick reference. Details and caveats follow below — read them before you order anything in the yellow or red rows.
| System | MX3 → MX4 | MX4 → MX5 | Notes |
|---|---|---|---|
| Seat covers | Yes | Yes | Seat pan shape is shared across the Sting line |
| Chain guard bolts / small hardware | Yes | Yes | Common M6 fastener sizes throughout |
| Swingarm bolts | Yes | Verify | MX5 length differs on some production runs |
| Linkage & rear shock bolts | Yes | Yes | Same linkage geometry across MX3/MX4/MX5 |
| Rear shock (288mm eye-to-eye) | Yes | Verify | Confirm eye-to-eye and stroke before ordering |
| Foot pegs & peg brackets | Yes | Yes | Peg mount spacing unchanged |
| Headlight kits / lighting | Yes | Yes | Universal bar or shroud mounting |
| Body plastics & graphics | No | No | Panel cut lines change between generations |
| Controller & harness | No | No | Different connectors and firmware per generation |
| Battery | No | No | Do not cross-fit batteries between models |
What reliably carries over between all three
The chassis hard points are where Talaria stayed consistent, and that is good news for anyone building a Sting.
Seat covers. The seat pan profile is shared across the Sting line, which is why a single Guts gripper cover part number covers MX3, MX4 and MX5. If you have been fighting for position on the stock slick vinyl, the Guts Racing Seat Cover for Talaria Sting is the same part regardless of which Sting you are on.
Linkage and rear shock mounting hardware. The linkage geometry did not change between MX3, MX4 and MX5, so the bolt path from the upper linkage knuckle down through the lower shock mount is identical. That is why the Titanium Linkage / Rear Shock Mount Kit is listed as a single MX3/MX4/MX5 part. If your rear end has gone vague and noisy over chop, this is usually the fix — the OEM steel pivot bolts are undersized for their bushing bores and they wear.
Small chassis fasteners. Chain guard bolts, peg grip pins, rotor bolts and general M6 hardware are common across the line. The titanium chain guard bolts cover MX3, MX4, MX5 and the XXX with one part.
Lighting. Because most quality headlight kits mount to the handlebar or to a universal bracket rather than a model-specific shroud, a Baja Designs Squadron Sport kit works across the Sting generations — the harness is the same 12V tap either way.
What carries over — with a caveat
Swingarm bolts. MX3 and MX4 share swingarm hardware. The MX5 changed bolt length on some production runs, so measure your existing bolt before ordering. Our Titanium Talaria Sting Swingarm Bolts are dimensioned to the MX3/MX4 spec.
Rear shocks. This is the one that costs people money. The relevant numbers are eye-to-eye length and stroke — not the model badge. The TECH ER30 288mm rear shock is a 288 x 85mm unit built for the MX3 and MX4 (and the Altis Sigma). Before you order any shock, pull a tape across your existing one from bolt center to bolt center. If it does not read 288mm, that shock is not your shock.
Bushings. If you are replacing pivot bolts on a bike with real hours on it, replace the bushings at the same time. New bolts in egged-out bushings will still knock, and you will assume the new parts failed when the bushings were the problem all along.
What does not interchange — do not try
Body plastics and graphics kits. Panel cut lines, mounting tabs and shroud shapes change between generations. An MX3 graphics kit on an MX4 will leave you trimming vinyl with a razor and still ending up with gaps. Order for your exact model.
Controllers, harnesses and batteries. Connector pinouts and firmware differ across generations. Cross-fitting electrical components is how you turn a $200 problem into a $1,200 problem. If you are chasing more power, upgrade within your generation's ecosystem — do not source a controller from a different Sting model because it was cheaper.
How to order the right part the first time
Three habits will save you every return shipping label you would otherwise pay for:
- Measure, do not assume. Eye-to-eye on shocks, shank length on bolts, outer diameter on axles. Model badges lie; calipers do not.
- Check the compatibility list on the product page, not the title. Every ThrottleCo listing spells out exactly which Sting variants it covers.
- When in doubt, ask. We ride these bikes. If you are not sure whether a part fits your MX5, message us with your model year and we will tell you straight — including when the honest answer is "that one does not fit yours."
Shop by your exact model to skip the guesswork: Talaria Sting MX3 parts, Talaria Sting MX4 parts, or Talaria Sting MX5 parts. Everything is in stock and ships fast from the USA — head over to throttleco.store and build the bike properly.
