Sold individually — price is for one (1) tire. The Pirelli MT 21™ Rallycross is a rear MX tire in size 120/80-18, 62R load/speed index.

Key Features

• Provides excellent off-road performance, even over long distances
• Top-selling dual-sport tire in the U.S.A
• Designed mainly for off-road use
• Dual-sport 90% Off 10% On

Specifications

• Brand: Pirelli
• Model: MT 21™ Rallycross
• Part Number: 3988900
• SKU: 0317-0651
• Position: Rear
• Size: 120/80-18
• Load/Speed Index: 62R
• Construction: Bias (Tube Type)
• Sidewall: Blackwall
• Rim Diameter: 18"
• Width: 120
• Market Segment: Dual Sport
• Weight: 11.6 lb
• Quantity: Each

Fitment by Brand

Aprilia

• 2018 RX 125 — Rear only (Factory pressure: 2.10 bar (30 psi); rim width: 2.75)
• 1998 ETX 125 — Rear only (Factory pressure: 2.00 bar (29 psi); rim width: 2.75)

BMW

• 1984 R80G/S — Rear only (Factory pressure: 2.30 bar (33 psi); rim width: 2.75)

Beta

• 2021 RR 4T 125 LC Enduro — Rear only (rim width: 2.75)
• 2007, 2020 Alp 200 — Rear only (Factory pressure: 1.20 bar (17 psi); rim width: 2.75; Factory pressure: 2.30 bar (33 psi); rim width: 2.75)

Cagiva

• 1992 W 8 — Rear only (Factory pressure: 1.80 bar (26 psi); rim width: 2.75)

Honda

• 2019 CRF450L — Rear only (Factory pressure: 1.50 bar (22 psi); rim width: 2.75)
• 2017 CRF 250 LA — Rear only (Factory pressure: 1.50 bar (22 psi); rim width: 2.75)
• 2017 CRF 250 RA — Rear only (Factory pressure: 1.75 bar (25 psi); rim width: 2.75)
• 2012 CRF250L — Rear only (Factory pressure: 1.50 bar (22 psi); rim width: 2.75)
• 1995 CRM 125 R — Rear only (rim width: 2.75)

Husaberg

• 2008 FE 450 e/6; 570 — Rear only (rim width: 2.75)

KTM

• 2003 625 SXC — Rear only (Factory pressure: 2.20 bar (32 psi); rim width: 2.75)
• 2002 LC4 625 Supercompetition — Rear only (rim width: 2.75)
• 2000 LC4 400 EXC-E — Rear only (Factory pressure: 2.30 bar (33 psi); rim width: 2.75)
• 1998 620 LC4 Adventure — Rear only (Factory pressure: 2.30 bar (33 psi); rim width: 2.75)
• 1998 640 LC4 Adventure — Rear only (Factory pressure: 2.30 bar (33 psi); rim width: 2.75)

MZ

• 2001 125 — Rear only (Factory pressure: 2.50 bar (36 psi); rim width: 2.75)
• 1998 Baghira; — Rear only (Factory pressure: 2.20 bar (32 psi); rim width: 2.75)

Malaguti

• 2019 XTM 125 — Rear only (rim width: 2.75)
• 2008 X3M Enduro — Rear only (rim width: 2.75)

Peugeot

• 2005 XPS Enduro — Rear only (Factory pressure: 2.10 bar (30 psi); rim width: 2.75)

SWM

• 2016 RS 125 R — Rear only (Factory pressure: 1.80 bar (26 psi); rim width: 2.75)

Suzuki

• 1980 SP400 T — Rear only (rim width: 2.75)

Yamaha

• 2005 XT 125 R — Rear only (Factory pressure: 2.30 bar (33 psi); rim width: 2.75)
• 1987, 1989 XT600 — Rear only (Factory pressure: 2.20 bar (32 psi); rim width: 2.75; Factory pressure: 2.50 bar (36 psi); rim width: 2.75)
• 1983, 1985, 1988 XT 600 Z — Rear only (Factory pressure: 2.20 bar (32 psi); rim width: 2.75; Factory pressure: 2.50 bar (36 psi); rim width: 2.75)
• 1986 XT 600 Z Tenere — Rear only (Factory pressure: 2.20 bar (32 psi); rim width: 2.75)

ZERO

• 2015 ZERO FX — Rear only (Factory pressure: 2.20 bar (32 psi); rim width: 2.75)

Factory fitment per the tire manufacturer's chart. Please confirm for your specific model and year.