Yamaha RX 100 and RX 135 block piston kit: price, which one fits

12,000+engine block kits sold
10 daysreturns from delivery
CODcash on delivery available

RX models at a glance

ModelYearsKits hereFrom
RX 1001985 to 19962Rs. 6,800
RXG 1351996 to 20051Rs. 6,800

RX over the years

1985 to 1986RX 100 with 6 volt electrics.
1986 to 1996RX 100 with 12 volt electrics. 98 cc two-stroke in Yamaha's catalogue.
1996 to 2005RXG 135, then the RX 135.

Signs your RX needs a block kit

SmokeMore smoke than usual from the silencer
Weak pickupSlow on climbs and with a pillion
Hard startNeeds many kicks
NoiseKnocking or rattling from the cylinder

After fitting: ride gently for the first 500 km and change the oil after that.

Original Yamaha or aftermarket?

The kits on this page are made by DEXO to fit the RX 100 and RXG 135. They are not Yamaha-branded. Each kit comes as a set: block, piston, rings, pin and circlips.

Common questions

What is the price of an RX 100 block piston kit?

RX 100 kits start at Rs. 6,800 and go up to Rs. 6,900. The RXG 135 kit is Rs. 6,800.

Is the RX 100 kit the same as the RX 135 kit?

No. The RX 100 and the RXG 135 have different engines, so we list different kits. Pick the section for your bike.

How do I know which RX I have?

The model name is on your RC and on the side panels. The RX 100 was sold up to 1996; the RXG and RX 135 came after it.

Are these original Yamaha kits?

No. DEXO kits are aftermarket and not Yamaha-branded.

Is a bore kit the same as a block piston kit?

Yes. Bore kit, block piston kit, cylinder kit and piston cylinder kit all mean the cylinder block with its piston, rings, pin and circlips.

Does the kit include the cylinder head?

No. The kit is the cylinder block with its piston set. The cylinder head is a separate part.

Can I return it if it does not fit?

Yes, within 10 days of delivery.

Is cash on delivery available?

Yes, for most pincodes.

Why buy engine parts from eAuto

5 lakh+ orders since 2020, shipped to 19,000+ pincodes.
11,000+ parts for the RX 100 and RX 135, 600+ of the kits on this page and 5,500+ DEXO kits sold.
10-day returns from delivery, and cash on delivery if you prefer.