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British Customs 18T/19T Front Countershaft Sprocket Triumph Bonneville / SE / T100 / Thruxton / Scrambler

Item: P299186

Highway cruising on your Modern Classic an get a buzzy at speed. Its ok to admit that you’ve tried to click up another gear when hitting the highway -… Read More

$26.95

This product is vehicle specific. Please to ensure fitment.

Learn More

Product Details

British Customs 18T/19T Front Countershaft Sprocket Triumph Bonneville / SE / T100 / Thruxton / Scrambler

Highway cruising on your Modern Classic an get a buzzy at speed. Its ok to admit that you’ve tried to click up another gear when hitting the highway -- we’ve done it too. To make interstate travel a smoother af-fair, British Customs has engineered a lightweight countershaft sprocket that allows riders to easily adjust their gearing ratio (see video instructions).

Each sprocket is manufactured from 8620 case-hardened steel and CAT plated with lightening holes to provide reduced weight compared to the stock sprocket. The BC sprockets are visually appealing and made to last, meaning they look fantastic when exposed with the British Customs Front Sprocket Cover delivering a true hot rod look.

Gearing Basics:

Going up one tooth from your bike’s stock configuration is a great alter-native for freeway riding and feels like you’ve added a 6th gear to your Triumph Modern Classic. Changing the number of teeth on your countershaft sprocket has the same effect as changing your rear sprocket by two teeth. Increasing the number of teeth of the countershaft sprocket will give you the feeling of adding another gear on the freeway.

If you are looking for more get up and go out of hole, drop down a tooth. The lower the tooth, the faster out of the hole, more push off the line, and less top end (top speed).

Features:

  • Changes gearing performance
  • Replaces worn sprocket
  • Case-hardened, plated steel
  • Drilled for looks and weight savings
  • Matches retro sprocket
  • Fits 525 sized chain
  • Made in USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style 18 Tooth RevZilla Item #1019441 MFR. Product #BC704-001-18 AvailabilityAvailable: Requires 3-5 business days of lead time prior to shipment
Product Style 19 Tooth RevZilla Item #1019442 MFR. Product #BC704-001-19 AvailabilityIn Stock: Ships next business day

This product is vehicle specific. Please to ensure fitment.

Fitment Notes & Exceptions
  • Bikes built in early 2015 will accept this sprocket, refer to the last 6 digits of your VIN number:
    • Scrambler - Up to VIN 694349
    • Bonneville - Up to VIN 694351
    • Thruxton - Up to VIN 694349

Triumph
Bonneville 2000-2015
Bonneville SE 2000-2015
Bonneville T100 2000-2015
Scrambler 2006-2015
Thruxton 2004-2015

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Product Description
Highway cruising on your Modern Classic an get a buzzy at speed. Its ok to admit that you’ve tried to click up another gear when hitting the highway -… Read More
Part Numbers
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Fitment
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Shipping & Returns
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Reviews & Questions

4.4 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
4
0
0
1
0
Bang For The Buck
4.4 / 5
Features
5.0 / 5
Style
5.0 / 5
Ease Of Install
4.2 / 5
Fit & Finish
5.0 / 5
Durability
4.2 / 5
Bang For The Buck
5 / 5
Ease Of Install
5 / 5
Durability
5 / 5
Sprocket Change Triumph Thruxton
I purchased the nineteen tooth sprocket for my 2015 Triumph Thruxton Ace. I noticed that the bike seemed to need a 6th gear when at high way speeds. I also noticed that the factory speedometer was optimistic by about 6 miles per hour. I confirmed this with a Yori Moto digital speedometer.
I installed the new sprocket, it was easy, I dropped about 300 RPM off at the same speed, and now my speedometer reads correct with no changes to the ecm. I like the new gear, first is a little taller and bike is more relaxed at hwy speeds! If you are thinking about doing this mod to your bike, go for it! You will love the lower RPM, better fuel economy, and have better drivability on the interstate with out sacrificing fun!
August 31, 2015
Bang For The Buck
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Just what I needed
I got this to take a little strain off the engine during the long highway stretch to work. Dropped the engine RPM by a little bit, but it was enough to take some vibration out of the handlebars too. Seems to have corrected the speedometer and was easy to install.
September 19, 2016
Bang For The Buck
2 / 5
Ease Of Install
1 / 5
Durability
1 / 5
Excellent customer service!
I ordered an T18 front sprocket for my 2014 triumph scrambler. When it arrived it looked great but to my disappointment, it didn't fit my bike for some reason. Weather it was a fault in manufacturing or the Australian version has a slight difference to the U.S. we couldn't figure out but the customer service team did the best they could to help me.
We tried to come up with a solution, but in the end they were happy to refund the cost of the part.
I'll definitely keep buying stuff from you guys! Thanks again
February 10, 2016
Ride:
2014 Triumph Scrambler
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
No more looking for 6th gear
Rides smoothy. InitiallyI had concerns about losing power, but I've not noticed any drop in torque, and it calms the motor down a bit at highway speeds (75-80 mph). I did have to adjust my speedo, but that wasn't too difficult.
June 12, 2017
Purchased
6 months ago
Bang For The Buck
5 / 5
Ease Of Install
5 / 5
Durability
5 / 5
19t front sprocket
its what I needed. sturdy. came in quick easy to find on the website.
August 2, 2016
Purchased
1 year ago
5 Customer Reviews
5 4.5/5
Read All Reviews
6 Questions & 9 Answers
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