• Daily Deals
  • Sell
  • Customer Support

This listing was ended by the seller because the item is no longer available.

Ships to:
Ships to:

Details about  TPO Honda RC51 SP1 SP2 Flapper Valve Removal Kit

TPO Honda RC51 SP1 SP2 Flapper Valve Removal Kit See original listing
Item Sold
Item condition:
Aug 01, 2012 06:54:11 PDT
US $19.99
$6.00 Expedited Shipping | See details
Item location:
College Station, United States


eBay item number:
Seller assumes all responsibility for this listing.

Item specifics




TPO Honda RC51 Flapper Valve Removal Kit
Shipping Policy Multiple Items Return Policy Check Out Instructions Payment Options
For more information about the TPO Honda RC51 Flapper Valve Removal Kit, see the manufacturer's description.
This is the famous TPO Parts Flapper Valve Removal Kit.  This kit is used to remove the horsepower-robbing "flapper valve mechanism" from your Honda RC51 motorcycle.


  • Honda RC51, all years

Kit Contents:

  • CNC- machined billet Aluminum block-off plate (anodized black)
  • All required hardware
  • Detailed directions with color photos
The RC51 is arguably the finest V-Twin sports bike ever produced by Honda. It is a very capable racer straight off the showroom floor. However, like most motorcycles it is not without its shortcomings.

The RC51 has a "flapper valve" mechanism in the air intake duct. Its purpose is to quiet down the intake noise. Unfortunately, it also costs you horsepower. The flapper valve mechanism is responsible for the commonly reported "flat spot" (dip) in horsepower around 5000-7000 RPM. Fortunately, TPO has a solution. This kit completely removes the flapper valve system. It opens up the intake tract so that the flapper valve restriction is eliminated.  This gives you added horsepower and saves over two pounds of weight!

The TPO Flapper Valve removal kit includes a sleek aluminum block-off plate that is machined to fit your motorcycle perfectly. It is made as thin as possible to minimize protrusion and weight. The kit includes all the required hardware and step-by-step illustrated directions. You can be up and running in about an hour with common hand tools.

If you're looking for other ways to ditch useless weight on your RC51, check out our TPO Parts PAIR block off kit for the Honda RC51.

Other Parts

Please visit our other auctions: TPO Parts Ebay Auctions.

Shipping Policy

USA and Canada

  • Shipping for most items is $6.00 for the first item, plus $1.00 for each additional item.
  • Some items are particularly bulky or heavy, and are charged a higher rate.
  • Shipments within the USA and to Canada take 4 to 5 business days and are shipped by USPS Priority Mail.
  • You will receive a notification from the US Postal Service when your order has been processed.
  • Shipping for most foreign items is $10.00 for the first item, plus $2.00 for each additional item.
  • Some items are particularly bulky or heavy, and are charged a higher rate.
  • International shipments are by USPS Air Mail.
  • Although we can provide a customs label number, international shipments are generally NOT trackable. Some countries allow tracking by customs number, once in the country. You will need to check with your local post office to determine if you can do so.
  • Shipment time is 2 to 6 weeks.
Italy and France
  • All packages shipped to Italy must be registered. There will be an additional $11.00 fee for this service.
  • Our experience with Italian and French postal systems has been particularly poor.
  • It may take up to 13 weeks to receive your package.
  • Please be patient and check with your local customs if you have not received your shipment.

Multiple Items

Multiple items won on the same day or the same weekend will have combined shipping. You may contact us to hold shipping for multiple items.

Payment Options

We accept PayPal. Items are held until payments clear.

Return Policy

Please contact us immediately if your order is incomplete or non-functional.

  • All returns must be processed through our RMA System. Not using the RMA system may cause delays.
  • All sales are final after 30 days.
  • You may return undamaged and unused items for a refund within 30 days for any reason.
  • Shipping charges will not be refunded.
  • K&N Filters: K&N Filters must be returned undamaged, unused, and unopened in the manufacturer's packaging.
  • TPO Parts is located at:

    TPO Parts
    5035 Raymond Stotzer Pkwy
    College Station, TX 77845


All products are warranted to be free from defects for 90 days. You may return a defective part for a replacement within 90 days of purchase.

Questions and answers about this item

No questions or answers have been posted about this item.


Place bid

Time left:
Current bid:
(Approximately ##1##)
Import charges:
Your max bid:
Your max bid:
By clicking Confirm bid, you commit to buy this item from the seller if you are the winning bidder.
By clicking Confirm bid, you are committing to buy this item from the seller if you are the winning bidder and have read and agree to the Global Shipping Program terms and conditions - opens in a new window or tab. Import charges previously quoted are subject to change if you increase you maximum bid amount.
Resume bidding, if the page does not update immediately.
Place bid
Review and confirm your bid
Bid confirmation
FREE shipping
See item description
(Approximately ##1##)
(Enter ##1## or more)
(Enter more than ##1##)
Your max bid:
Increase max bid
Place bid
Confirm bid
Increase max bid
Change bid
, you've been outbid. Don't let it get away - bid again!
, you're the highest bidder on this item. Hope you win it!
, you're the first bidder. Hope you win!
, you're currently the high bidder, but you're close to getting outbid.
, this auction is almost over and you're currently the high bidder.
, you're the high bidder, but the reserve price hasn't been met.
Please enter your bid again.
Please enter a valid number as the bid price.
Enter an amount that is equal or greater than the minimum bid required. This can be found under the bid entry box.
Maximum bids can't be lowered once they're submitted.
This seller requires the buyer to have a PayPal account to purchase this item. Get a PayPal account here .
Your bid is greater than or equal to the Buy It Now price. We recommend you purchase this item via Buy It Now. If you still wish to bid, you may do so below.
Time left:
Current bid:
(approximately ##1##)
Your maximum bid:
(approximately ##1##)
Increase your maximum bid:
By clicking 1 Click Bid, you commit to buy this item from the seller if you're the winning bidder. Learn moreabout 1-click bid - opens in a new window or tab
(approximately ##1##)
Winning bid:
Starting bid:
Congrats! The auction has ended and you're the winner.
The auction has ended, but the reserve price was not met.
Sorry, the auction has ended and you were outbid.
Good news, you're the high bidder.
Sorry, you've been outbid.
You're the high bidder, but the reserve price is not met.
Please enter a higher amount than the current bid.
Maximum bids cannot be lowered once submitted.
Please enter a valid number.