580381 – Pillion Footrest Spring for Classic 350/500 UCE, Bullet 350/500 UCE, Electra 350 UCE, Thunderbird 350/500 (TBTS/NTB), Continental GT 535 (Euro-4 footrest group) – Genuine Royal Enfield

This is the genuine Royal Enfield 580381 – Pillion Footrest Spring (later shown as 580381/C → 580381/D on some dealer sites). It’s the small return spring that sits on the pillion footrest bracket and snaps the peg up when not in use. Official parts pages for Classic/Thunderbird/Bullet UCE and the Euro-4 C5/B5 sheet show this exact number in the “Foot Rests & Brake Pedal / Pillion Footrest” section, so we’re listing only those confirmed families to keep returns low.

Use it whenever the pillion peg has become loose, droopy or doesn’t spring back after folding. Because this is OEM, the wire gauge, coil count and leg angle match the RE footrest arm, so it gives the same “snap” as stock and doesn’t foul the bracket. Supplied per piece — most bikes show qty 2 in the fiche (one for each pillion peg), so order as many as your diagram says.

Key Features

• Genuine Royal Enfield Pillion Footrest Spring – 580381 (superseded on some sites to 580381/D). 

• Correct spring rate & leg shape for RE pillion peg brackets.

• Restores auto-return of the peg → tidier, safer for rider.

• Direct fit on listed UCE/Euro-4 models — no bending or trimming.

• Cheap wear item → keep 1–2 as workshop spares.

• Supplied per piece in OE-labelled pack.

Compatibility Table 

If your fiche line shows 580381/C or 580381/D, this is the same spring family — list as the current supply.

Variants / Related

• 580380 – Ball (pillion footrest detent) right next to this spring in the diagram. 

• 594372 – Lock Pin, Footrest

• 1010132 / 1010060 – Pillion Footrest Assy LH/RH (if the arm itself is damaged)

FAQs

Q1. I see 580381/C or 580381/D on another site — is it the same?
Yes — dealer sites show /C → /D as the live replacement for pillion footrest spring 580381. Order the current suffix. 

Q2. How many do I need?
One per pillion peg. Most bikes have 2 rear pegs → buy 2.

Q3. My peg doesn’t stay up — is the spring the problem?
Usually yes. Replace spring and check the ball (580380) + pin (594372) for wear. 

Q4. Will it fit J-series (Classic Reborn/Meteor/Hunter/Bullet 350 J)?
Not confirmed. 

Q5. Can I stretch/shorten it to fit another bike?
Don’t — it’s a small, shaped spring; bending it ruins the return action. Use it only on the RE footrest it’s meant for.