Author Topic: !8T front sprocket  (Read 321 times)

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Offline greybeard 2

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!8T front sprocket
« on: January 30, 2026, 14:49:04 »
Hi has anyone fitted an 18t front sprocket on a 1050DL,if so here was it obtained?.Before any one asks why I want to,it's my bike and I fettle it how I like!

Offline Gert

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Re: !8T front sprocket
« Reply #1 on: January 31, 2026, 05:50:33 »
Which year and model DL1050 do you have?
From the post on https://www.stromtrooper.com/threads/2023-dl1050-gearing.442444/, there appeared to be a change to the gearbox ratio of the 1st and 6th gears from 2023 (M3) models.

Offline greybeard 2

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Re: !8T front sprocket
« Reply #2 on: January 31, 2026, 17:25:58 »
2021 reg

Offline MisterDavey

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Re: !8T front sprocket
« Reply #3 on: January 31, 2026, 21:40:22 »
My 2023MY 1050 is very highly geared, low speed is a PITA. However, it uses that immense torque, plugs along nicely on fast roads, and gives me a return average of 58Mpg.
I've not had it a year yet, a larger front sprocket may be on the cards at some point.
Simon Davey

Offline Gert

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Re: !8T front sprocket
« Reply #4 on: February 01, 2026, 06:03:15 »
Depending on where one is located in the UK, maybe a smaller front sprocket or larger rear sprocket is the way to go on the pre-2023 models to allow the 1st gear a more usable torque, especially for take off in city traffic and head-wind conditions?

Yeah, the 6th gear will end up with a higher rpm for a set speed vs the stock gearing setup, but one has to weigh up how often one rides at those excessive highway speeds with all the speed control cameras in use.

Besides, the lower gearing has so many more advantages in slow moving traffic, lower torque when riding off the beaten track, a 6th gear lower gear ratio could make it not necessary to drop a gear or two to accelerate past some plonker holding you up or to simply move into a faster lane, etc ....

Have a look on https://www.gearingcommander.com for info relevant to your model. Do remember that the info on gearingcommander is under ideal conditions plus on a level hard surface.  So if one rides more in twisty or hiily country, then perhaps keep that in mind when looking for a better sprocket size.

Offline vstroman

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Re: !8T front sprocket
« Reply #5 on: February 01, 2026, 21:52:17 »
I went up to a 16 front on the 650 to calm down the cruising revs at around 70mph but I didn't like the loss of low down torque so went back to the 15-47 ratio.
All depends on what type of riding you mostly do I suppose.

Offline greybeard 2

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Re: !8T front sprocket
« Reply #6 on: February 02, 2026, 12:22:02 »
All I wanted to know is were I could obtain one from?.

Offline Pete O Tube

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Re: !8T front sprocket
« Reply #7 on: February 02, 2026, 13:13:39 »
JT Sprockets - but they only list 17T as the largest size for the front of all 1000 (996 & 1037cc) and 1050 models, I suspect 17T is the largest that can be accommodated within the gearbox sprocket area due to, possibly, the clutch pushrod (I can't remember exactly).

On my gen 1 1000 I lowered the gearing with a 43T rather than standard 41T rear sprocket (17T gearbox sprocket is standard for all 1000 and 1050), it was still high geared enough for high speed cruising (100mph = 6k rpm) but was much nicer at lower speeds, it was just too overgeared for A road use.

Gen 2 1000 was much better in the gearing ratios with different internal ratios but the same 100mph = 6k rpm.

It's a few years since I rode an early 1050 but thought the gearing the same as the gen 2 1000.